1 | =head1 NAME
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2 |
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3 | perldiag - various Perl diagnostics
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4 |
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5 | =head1 DESCRIPTION
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6 |
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7 | These messages are classified as follows (listed in increasing order of
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8 | desperation):
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9 |
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10 | (W) A warning (optional).
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11 | (D) A deprecation (optional).
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12 | (S) A severe warning (default).
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13 | (F) A fatal error (trappable).
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14 | (P) An internal error you should never see (trappable).
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15 | (X) A very fatal error (nontrappable).
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16 | (A) An alien error message (not generated by Perl).
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17 |
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18 | The majority of messages from the first three classifications above
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19 | (W, D & S) can be controlled using the C<warnings> pragma.
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20 |
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21 | If a message can be controlled by the C<warnings> pragma, its warning
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22 | category is included with the classification letter in the description
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23 | below.
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24 |
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25 | Optional warnings are enabled by using the C<warnings> pragma or the B<-w>
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26 | and B<-W> switches. Warnings may be captured by setting C<$SIG{__WARN__}>
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27 | to a reference to a routine that will be called on each warning instead
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28 | of printing it. See L<perlvar>.
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29 |
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30 | Default warnings are always enabled unless they are explicitly disabled
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31 | with the C<warnings> pragma or the B<-X> switch.
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32 |
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33 | Trappable errors may be trapped using the eval operator. See
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34 | L<perlfunc/eval>. In almost all cases, warnings may be selectively
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35 | disabled or promoted to fatal errors using the C<warnings> pragma.
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36 | See L<warnings>.
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37 |
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38 | The messages are in alphabetical order, without regard to upper or
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39 | lower-case. Some of these messages are generic. Spots that vary are
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40 | denoted with a %s or other printf-style escape. These escapes are
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41 | ignored by the alphabetical order, as are all characters other than
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42 | letters. To look up your message, just ignore anything that is not a
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43 | letter.
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44 |
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45 | =over 4
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46 |
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47 | =item accept() on closed socket %s
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48 |
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49 | (W closed) You tried to do an accept on a closed socket. Did you forget
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50 | to check the return value of your socket() call? See
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51 | L<perlfunc/accept>.
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52 |
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53 | =item Allocation too large: %lx
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54 |
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55 | (X) You can't allocate more than 64K on an MS-DOS machine.
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56 |
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57 | =item '!' allowed only after types %s
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58 |
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59 | (F) The '!' is allowed in pack() or unpack() only after certain types.
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60 | See L<perlfunc/pack>.
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61 |
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62 | =item Ambiguous call resolved as CORE::%s(), qualify as such or use &
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63 |
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64 | (W ambiguous) A subroutine you have declared has the same name as a Perl
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65 | keyword, and you have used the name without qualification for calling
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66 | one or the other. Perl decided to call the builtin because the
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67 | subroutine is not imported.
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68 |
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69 | To force interpretation as a subroutine call, either put an ampersand
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70 | before the subroutine name, or qualify the name with its package.
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71 | Alternatively, you can import the subroutine (or pretend that it's
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72 | imported with the C<use subs> pragma).
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73 |
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74 | To silently interpret it as the Perl operator, use the C<CORE::> prefix
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75 | on the operator (e.g. C<CORE::log($x)>) or declare the subroutine
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76 | to be an object method (see L<perlsub/"Subroutine Attributes"> or
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77 | L<attributes>).
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78 |
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79 | =item Ambiguous range in transliteration operator
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80 |
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81 | (F) You wrote something like C<tr/a-z-0//> which doesn't mean anything at
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82 | all. To include a C<-> character in a transliteration, put it either
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83 | first or last. (In the past, C<tr/a-z-0//> was synonymous with
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84 | C<tr/a-y//>, which was probably not what you would have expected.)
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85 |
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86 | =item Ambiguous use of %s resolved as %s
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87 |
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88 | (W ambiguous)(S) You said something that may not be interpreted the way
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89 | you thought. Normally it's pretty easy to disambiguate it by supplying
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90 | a missing quote, operator, parenthesis pair or declaration.
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91 |
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92 | =item '|' and '<' may not both be specified on command line
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93 |
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94 | (F) An error peculiar to VMS. Perl does its own command line
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95 | redirection, and found that STDIN was a pipe, and that you also tried to
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96 | redirect STDIN using '<'. Only one STDIN stream to a customer, please.
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97 |
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98 | =item '|' and '>' may not both be specified on command line
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99 |
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100 | (F) An error peculiar to VMS. Perl does its own command line
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101 | redirection, and thinks you tried to redirect stdout both to a file and
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102 | into a pipe to another command. You need to choose one or the other,
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103 | though nothing's stopping you from piping into a program or Perl script
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104 | which 'splits' output into two streams, such as
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105 |
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106 | open(OUT,">$ARGV[0]") or die "Can't write to $ARGV[0]: $!";
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107 | while (<STDIN>) {
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108 | print;
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109 | print OUT;
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110 | }
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111 | close OUT;
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112 |
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113 | =item Applying %s to %s will act on scalar(%s)
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114 |
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115 | (W misc) The pattern match (C<//>), substitution (C<s///>), and
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116 | transliteration (C<tr///>) operators work on scalar values. If you apply
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117 | one of them to an array or a hash, it will convert the array or hash to
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118 | a scalar value -- the length of an array, or the population info of a
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119 | hash -- and then work on that scalar value. This is probably not what
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120 | you meant to do. See L<perlfunc/grep> and L<perlfunc/map> for
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121 | alternatives.
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122 |
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123 | =item Args must match #! line
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124 |
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125 | (F) The setuid emulator requires that the arguments Perl was invoked
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126 | with match the arguments specified on the #! line. Since some systems
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127 | impose a one-argument limit on the #! line, try combining switches;
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128 | for example, turn C<-w -U> into C<-wU>.
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129 |
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130 | =item Arg too short for msgsnd
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131 |
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132 | (F) msgsnd() requires a string at least as long as sizeof(long).
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133 |
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134 | =item %s argument is not a HASH or ARRAY element
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135 |
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136 | (F) The argument to exists() must be a hash or array element, such as:
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137 |
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138 | $foo{$bar}
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139 | $ref->{"susie"}[12]
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140 |
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141 | =item %s argument is not a HASH or ARRAY element or slice
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142 |
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143 | (F) The argument to delete() must be either a hash or array element,
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144 | such as:
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145 |
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146 | $foo{$bar}
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147 | $ref->{"susie"}[12]
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148 |
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149 | or a hash or array slice, such as:
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150 |
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151 | @foo[$bar, $baz, $xyzzy]
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152 | @{$ref->[12]}{"susie", "queue"}
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153 |
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154 | =item %s argument is not a subroutine name
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155 |
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156 | (F) The argument to exists() for C<exists &sub> must be a subroutine
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157 | name, and not a subroutine call. C<exists &sub()> will generate this
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158 | error.
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159 |
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160 | =item Argument "%s" isn't numeric%s
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161 |
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162 | (W numeric) The indicated string was fed as an argument to an operator
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163 | that expected a numeric value instead. If you're fortunate the message
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164 | will identify which operator was so unfortunate.
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165 |
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166 | =item Argument list not closed for PerlIO layer "%s"
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167 |
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168 | (W layer) When pushing a layer with arguments onto the Perl I/O system you
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169 | forgot the ) that closes the argument list. (Layers take care of transforming
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170 | data between external and internal representations.) Perl stopped parsing
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171 | the layer list at this point and did not attempt to push this layer.
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172 | If your program didn't explicitly request the failing operation, it may be
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173 | the result of the value of the environment variable PERLIO.
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174 |
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175 | =item Array @%s missing the @ in argument %d of %s()
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176 |
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177 | (D deprecated) Really old Perl let you omit the @ on array names in some
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178 | spots. This is now heavily deprecated.
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179 |
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180 | =item assertion botched: %s
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181 |
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182 | (P) The malloc package that comes with Perl had an internal failure.
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183 |
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184 | =item Assertion failed: file "%s"
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185 |
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186 | (P) A general assertion failed. The file in question must be examined.
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187 |
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188 | =item Assignment to both a list and a scalar
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189 |
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190 | (F) If you assign to a conditional operator, the 2nd and 3rd arguments
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191 | must either both be scalars or both be lists. Otherwise Perl won't
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192 | know which context to supply to the right side.
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193 |
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194 | =item A thread exited while %d threads were running
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195 |
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196 | (W threads)(S) When using threaded Perl, a thread (not necessarily the main
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197 | thread) exited while there were still other threads running.
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198 | Usually it's a good idea to first collect the return values of the
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199 | created threads by joining them, and only then exit from the main
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200 | thread. See L<threads>.
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201 |
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202 | =item Attempt to access disallowed key '%s' in a restricted hash
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203 |
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204 | (F) The failing code has attempted to get or set a key which is not in
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205 | the current set of allowed keys of a restricted hash.
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206 |
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207 | =item Attempt to bless into a reference
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208 |
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209 | (F) The CLASSNAME argument to the bless() operator is expected to be
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210 | the name of the package to bless the resulting object into. You've
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211 | supplied instead a reference to something: perhaps you wrote
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212 |
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213 | bless $self, $proto;
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214 |
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215 | when you intended
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216 |
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217 | bless $self, ref($proto) || $proto;
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218 |
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219 | If you actually want to bless into the stringified version
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220 | of the reference supplied, you need to stringify it yourself, for
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221 | example by:
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222 |
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223 | bless $self, "$proto";
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224 |
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225 | =item Attempt to delete disallowed key '%s' from a restricted hash
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226 |
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227 | (F) The failing code attempted to delete from a restricted hash a key
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228 | which is not in its key set.
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229 |
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230 | =item Attempt to delete readonly key '%s' from a restricted hash
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231 |
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232 | (F) The failing code attempted to delete a key whose value has been
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233 | declared readonly from a restricted hash.
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234 |
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235 | =item Attempt to free non-arena SV: 0x%lx
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236 |
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237 | (P internal) All SV objects are supposed to be allocated from arenas
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238 | that will be garbage collected on exit. An SV was discovered to be
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239 | outside any of those arenas.
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240 |
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241 | =item Attempt to free nonexistent shared string
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242 |
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243 | (P internal) Perl maintains a reference counted internal table of
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244 | strings to optimize the storage and access of hash keys and other
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245 | strings. This indicates someone tried to decrement the reference count
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246 | of a string that can no longer be found in the table.
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247 |
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248 | =item Attempt to free temp prematurely
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249 |
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250 | (W debugging) Mortalized values are supposed to be freed by the
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251 | free_tmps() routine. This indicates that something else is freeing the
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252 | SV before the free_tmps() routine gets a chance, which means that the
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253 | free_tmps() routine will be freeing an unreferenced scalar when it does
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254 | try to free it.
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255 |
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256 | =item Attempt to free unreferenced glob pointers
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257 |
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258 | (P internal) The reference counts got screwed up on symbol aliases.
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259 |
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260 | =item Attempt to free unreferenced scalar
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261 |
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262 | (W internal) Perl went to decrement the reference count of a scalar to
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263 | see if it would go to 0, and discovered that it had already gone to 0
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264 | earlier, and should have been freed, and in fact, probably was freed.
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265 | This could indicate that SvREFCNT_dec() was called too many times, or
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266 | that SvREFCNT_inc() was called too few times, or that the SV was
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267 | mortalized when it shouldn't have been, or that memory has been
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268 | corrupted.
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269 |
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270 | =item Attempt to join self
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271 |
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272 | (F) You tried to join a thread from within itself, which is an
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273 | impossible task. You may be joining the wrong thread, or you may need
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274 | to move the join() to some other thread.
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275 |
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276 | =item Attempt to pack pointer to temporary value
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277 |
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278 | (W pack) You tried to pass a temporary value (like the result of a
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279 | function, or a computed expression) to the "p" pack() template. This
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280 | means the result contains a pointer to a location that could become
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281 | invalid anytime, even before the end of the current statement. Use
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282 | literals or global values as arguments to the "p" pack() template to
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283 | avoid this warning.
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284 |
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285 | =item Attempt to set length of freed array
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286 |
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287 | (W) You tried to set the length of an array which has been freed. You
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288 | can do this by storing a reference to the scalar representing the last index
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289 | of an array and later assigning through that reference. For example
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290 |
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291 | $r = do {my @a; \$#a};
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292 | $$r = 503
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293 |
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294 | =item Attempt to use reference as lvalue in substr
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295 |
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296 | (W substr) You supplied a reference as the first argument to substr()
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297 | used as an lvalue, which is pretty strange. Perhaps you forgot to
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298 | dereference it first. See L<perlfunc/substr>.
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299 |
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300 | =item Bad arg length for %s, is %d, should be %s
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301 |
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302 | (F) You passed a buffer of the wrong size to one of msgctl(), semctl()
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303 | or shmctl(). In C parlance, the correct sizes are, respectively,
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304 | S<sizeof(struct msqid_ds *)>, S<sizeof(struct semid_ds *)>, and
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305 | S<sizeof(struct shmid_ds *)>.
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306 |
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307 | =item Bad evalled substitution pattern
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308 |
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309 | (F) You've used the C</e> switch to evaluate the replacement for a
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310 | substitution, but perl found a syntax error in the code to evaluate,
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311 | most likely an unexpected right brace '}'.
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312 |
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313 | =item Bad filehandle: %s
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314 |
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315 | (F) A symbol was passed to something wanting a filehandle, but the
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316 | symbol has no filehandle associated with it. Perhaps you didn't do an
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317 | open(), or did it in another package.
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318 |
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319 | =item Bad free() ignored
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320 |
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321 | (S malloc) An internal routine called free() on something that had never
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322 | been malloc()ed in the first place. Mandatory, but can be disabled by
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323 | setting environment variable C<PERL_BADFREE> to 0.
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324 |
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325 | This message can be seen quite often with DB_File on systems with "hard"
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326 | dynamic linking, like C<AIX> and C<OS/2>. It is a bug of C<Berkeley DB>
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327 | which is left unnoticed if C<DB> uses I<forgiving> system malloc().
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328 |
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329 | =item Bad hash
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330 |
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331 | (P) One of the internal hash routines was passed a null HV pointer.
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332 |
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333 | =item Bad index while coercing array into hash
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334 |
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335 | (F) The index looked up in the hash found as the 0'th element of a
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336 | pseudo-hash is not legal. Index values must be at 1 or greater.
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337 | See L<perlref>.
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338 |
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339 | =item Badly placed ()'s
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340 |
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341 | (A) You've accidentally run your script through B<csh> instead
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342 | of Perl. Check the #! line, or manually feed your script into
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343 | Perl yourself.
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344 |
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345 | =item Bad name after %s::
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346 |
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347 | (F) You started to name a symbol by using a package prefix, and then
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348 | didn't finish the symbol. In particular, you can't interpolate outside
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349 | of quotes, so
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350 |
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351 | $var = 'myvar';
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352 | $sym = mypack::$var;
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353 |
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354 | is not the same as
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355 |
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356 | $var = 'myvar';
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357 | $sym = "mypack::$var";
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358 |
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359 | =item Bad realloc() ignored
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360 |
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361 | (S malloc) An internal routine called realloc() on something that had
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362 | never been malloc()ed in the first place. Mandatory, but can be disabled
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363 | by setting environment variable C<PERL_BADFREE> to 1.
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364 |
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365 | =item Bad symbol for array
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366 |
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367 | (P) An internal request asked to add an array entry to something that
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368 | wasn't a symbol table entry.
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369 |
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370 | =item Bad symbol for filehandle
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371 |
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372 | (P) An internal request asked to add a filehandle entry to something
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373 | that wasn't a symbol table entry.
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374 |
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375 | =item Bad symbol for hash
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376 |
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377 | (P) An internal request asked to add a hash entry to something that
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378 | wasn't a symbol table entry.
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379 |
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380 | =item Bareword found in conditional
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381 |
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382 | (W bareword) The compiler found a bareword where it expected a
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383 | conditional, which often indicates that an || or && was parsed as part
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384 | of the last argument of the previous construct, for example:
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385 |
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386 | open FOO || die;
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387 |
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388 | It may also indicate a misspelled constant that has been interpreted as
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389 | a bareword:
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390 |
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391 | use constant TYPO => 1;
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392 | if (TYOP) { print "foo" }
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393 |
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394 | The C<strict> pragma is useful in avoiding such errors.
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395 |
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396 | =item Bareword "%s" not allowed while "strict subs" in use
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397 |
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398 | (F) With "strict subs" in use, a bareword is only allowed as a
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399 | subroutine identifier, in curly brackets or to the left of the "=>"
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400 | symbol. Perhaps you need to predeclare a subroutine?
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401 |
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402 | =item Bareword "%s" refers to nonexistent package
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403 |
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404 | (W bareword) You used a qualified bareword of the form C<Foo::>, but the
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405 | compiler saw no other uses of that namespace before that point. Perhaps
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406 | you need to predeclare a package?
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407 |
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408 | =item BEGIN failed--compilation aborted
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409 |
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410 | (F) An untrapped exception was raised while executing a BEGIN
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411 | subroutine. Compilation stops immediately and the interpreter is
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412 | exited.
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413 |
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414 | =item BEGIN not safe after errors--compilation aborted
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415 |
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416 | (F) Perl found a C<BEGIN {}> subroutine (or a C<use> directive, which
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417 | implies a C<BEGIN {}>) after one or more compilation errors had already
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418 | occurred. Since the intended environment for the C<BEGIN {}> could not
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419 | be guaranteed (due to the errors), and since subsequent code likely
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420 | depends on its correct operation, Perl just gave up.
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421 |
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422 | =item \1 better written as $1
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423 |
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424 | (W syntax) Outside of patterns, backreferences live on as variables.
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425 | The use of backslashes is grandfathered on the right-hand side of a
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426 | substitution, but stylistically it's better to use the variable form
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427 | because other Perl programmers will expect it, and it works better if
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428 | there are more than 9 backreferences.
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429 |
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430 | =item Binary number > 0b11111111111111111111111111111111 non-portable
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431 |
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432 | (W portable) The binary number you specified is larger than 2**32-1
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433 | (4294967295) and therefore non-portable between systems. See
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434 | L<perlport> for more on portability concerns.
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435 |
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436 | =item bind() on closed socket %s
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437 |
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438 | (W closed) You tried to do a bind on a closed socket. Did you forget to
|
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439 | check the return value of your socket() call? See L<perlfunc/bind>.
|
---|
440 |
|
---|
441 | =item binmode() on closed filehandle %s
|
---|
442 |
|
---|
443 | (W unopened) You tried binmode() on a filehandle that was never opened.
|
---|
444 | Check you control flow and number of arguments.
|
---|
445 |
|
---|
446 | =item Bit vector size > 32 non-portable
|
---|
447 |
|
---|
448 | (W portable) Using bit vector sizes larger than 32 is non-portable.
|
---|
449 |
|
---|
450 | =item Bizarre copy of %s in %s
|
---|
451 |
|
---|
452 | (P) Perl detected an attempt to copy an internal value that is not
|
---|
453 | copyable.
|
---|
454 |
|
---|
455 | =item Buffer overflow in prime_env_iter: %s
|
---|
456 |
|
---|
457 | (W internal) A warning peculiar to VMS. While Perl was preparing to
|
---|
458 | iterate over %ENV, it encountered a logical name or symbol definition
|
---|
459 | which was too long, so it was truncated to the string shown.
|
---|
460 |
|
---|
461 | =item Callback called exit
|
---|
462 |
|
---|
463 | (F) A subroutine invoked from an external package via call_sv()
|
---|
464 | exited by calling exit.
|
---|
465 |
|
---|
466 | =item %s() called too early to check prototype
|
---|
467 |
|
---|
468 | (W prototype) You've called a function that has a prototype before the
|
---|
469 | parser saw a definition or declaration for it, and Perl could not check
|
---|
470 | that the call conforms to the prototype. You need to either add an
|
---|
471 | early prototype declaration for the subroutine in question, or move the
|
---|
472 | subroutine definition ahead of the call to get proper prototype
|
---|
473 | checking. Alternatively, if you are certain that you're calling the
|
---|
474 | function correctly, you may put an ampersand before the name to avoid
|
---|
475 | the warning. See L<perlsub>.
|
---|
476 |
|
---|
477 | =item Cannot compress integer in pack
|
---|
478 |
|
---|
479 | (F) An argument to pack("w",...) was too large to compress. The BER
|
---|
480 | compressed integer format can only be used with positive integers, and you
|
---|
481 | attempted to compress Infinity or a very large number (> 1e308).
|
---|
482 | See L<perlfunc/pack>.
|
---|
483 |
|
---|
484 | =item Cannot compress negative numbers in pack
|
---|
485 |
|
---|
486 | (F) An argument to pack("w",...) was negative. The BER compressed integer
|
---|
487 | format can only be used with positive integers. See L<perlfunc/pack>.
|
---|
488 |
|
---|
489 | =item Can only compress unsigned integers in pack
|
---|
490 |
|
---|
491 | (F) An argument to pack("w",...) was not an integer. The BER compressed
|
---|
492 | integer format can only be used with positive integers, and you attempted
|
---|
493 | to compress something else. See L<perlfunc/pack>.
|
---|
494 |
|
---|
495 | =item Can't bless non-reference value
|
---|
496 |
|
---|
497 | (F) Only hard references may be blessed. This is how Perl "enforces"
|
---|
498 | encapsulation of objects. See L<perlobj>.
|
---|
499 |
|
---|
500 | =item Can't call method "%s" in empty package "%s"
|
---|
501 |
|
---|
502 | (F) You called a method correctly, and it correctly indicated a package
|
---|
503 | functioning as a class, but that package doesn't have ANYTHING defined
|
---|
504 | in it, let alone methods. See L<perlobj>.
|
---|
505 |
|
---|
506 | =item Can't call method "%s" on an undefined value
|
---|
507 |
|
---|
508 | (F) You used the syntax of a method call, but the slot filled by the
|
---|
509 | object reference or package name contains an undefined value. Something
|
---|
510 | like this will reproduce the error:
|
---|
511 |
|
---|
512 | $BADREF = undef;
|
---|
513 | process $BADREF 1,2,3;
|
---|
514 | $BADREF->process(1,2,3);
|
---|
515 |
|
---|
516 | =item Can't call method "%s" on unblessed reference
|
---|
517 |
|
---|
518 | (F) A method call must know in what package it's supposed to run. It
|
---|
519 | ordinarily finds this out from the object reference you supply, but you
|
---|
520 | didn't supply an object reference in this case. A reference isn't an
|
---|
521 | object reference until it has been blessed. See L<perlobj>.
|
---|
522 |
|
---|
523 | =item Can't call method "%s" without a package or object reference
|
---|
524 |
|
---|
525 | (F) You used the syntax of a method call, but the slot filled by the
|
---|
526 | object reference or package name contains an expression that returns a
|
---|
527 | defined value which is neither an object reference nor a package name.
|
---|
528 | Something like this will reproduce the error:
|
---|
529 |
|
---|
530 | $BADREF = 42;
|
---|
531 | process $BADREF 1,2,3;
|
---|
532 | $BADREF->process(1,2,3);
|
---|
533 |
|
---|
534 | =item Can't chdir to %s
|
---|
535 |
|
---|
536 | (F) You called C<perl -x/foo/bar>, but C</foo/bar> is not a directory
|
---|
537 | that you can chdir to, possibly because it doesn't exist.
|
---|
538 |
|
---|
539 | =item Can't check filesystem of script "%s" for nosuid
|
---|
540 |
|
---|
541 | (P) For some reason you can't check the filesystem of the script for
|
---|
542 | nosuid.
|
---|
543 |
|
---|
544 | =item Can't coerce array into hash
|
---|
545 |
|
---|
546 | (F) You used an array where a hash was expected, but the array has no
|
---|
547 | information on how to map from keys to array indices. You can do that
|
---|
548 | only with arrays that have a hash reference at index 0.
|
---|
549 |
|
---|
550 | =item Can't coerce %s to integer in %s
|
---|
551 |
|
---|
552 | (F) Certain types of SVs, in particular real symbol table entries
|
---|
553 | (typeglobs), can't be forced to stop being what they are. So you can't
|
---|
554 | say things like:
|
---|
555 |
|
---|
556 | *foo += 1;
|
---|
557 |
|
---|
558 | You CAN say
|
---|
559 |
|
---|
560 | $foo = *foo;
|
---|
561 | $foo += 1;
|
---|
562 |
|
---|
563 | but then $foo no longer contains a glob.
|
---|
564 |
|
---|
565 | =item Can't coerce %s to number in %s
|
---|
566 |
|
---|
567 | (F) Certain types of SVs, in particular real symbol table entries
|
---|
568 | (typeglobs), can't be forced to stop being what they are.
|
---|
569 |
|
---|
570 | =item Can't coerce %s to string in %s
|
---|
571 |
|
---|
572 | (F) Certain types of SVs, in particular real symbol table entries
|
---|
573 | (typeglobs), can't be forced to stop being what they are.
|
---|
574 |
|
---|
575 | =item Can't create pipe mailbox
|
---|
576 |
|
---|
577 | (P) An error peculiar to VMS. The process is suffering from exhausted
|
---|
578 | quotas or other plumbing problems.
|
---|
579 |
|
---|
580 | =item Can't declare class for non-scalar %s in "%s"
|
---|
581 |
|
---|
582 | (F) Currently, only scalar variables can be declared with a specific
|
---|
583 | class qualifier in a "my" or "our" declaration. The semantics may be
|
---|
584 | extended for other types of variables in future.
|
---|
585 |
|
---|
586 | =item Can't declare %s in "%s"
|
---|
587 |
|
---|
588 | (F) Only scalar, array, and hash variables may be declared as "my" or
|
---|
589 | "our" variables. They must have ordinary identifiers as names.
|
---|
590 |
|
---|
591 | =item Can't do inplace edit: %s is not a regular file
|
---|
592 |
|
---|
593 | (S inplace) You tried to use the B<-i> switch on a special file, such as
|
---|
594 | a file in /dev, or a FIFO. The file was ignored.
|
---|
595 |
|
---|
596 | =item Can't do inplace edit on %s: %s
|
---|
597 |
|
---|
598 | (S inplace) The creation of the new file failed for the indicated
|
---|
599 | reason.
|
---|
600 |
|
---|
601 | =item Can't do inplace edit without backup
|
---|
602 |
|
---|
603 | (F) You're on a system such as MS-DOS that gets confused if you try
|
---|
604 | reading from a deleted (but still opened) file. You have to say
|
---|
605 | C<-i.bak>, or some such.
|
---|
606 |
|
---|
607 | =item Can't do inplace edit: %s would not be unique
|
---|
608 |
|
---|
609 | (S inplace) Your filesystem does not support filenames longer than 14
|
---|
610 | characters and Perl was unable to create a unique filename during
|
---|
611 | inplace editing with the B<-i> switch. The file was ignored.
|
---|
612 |
|
---|
613 | =item Can't do {n,m} with n > m in regex; marked by <-- HERE in m/%s/
|
---|
614 |
|
---|
615 | (F) Minima must be less than or equal to maxima. If you really want your
|
---|
616 | regexp to match something 0 times, just put {0}. The <-- HERE shows in the
|
---|
617 | regular expression about where the problem was discovered. See L<perlre>.
|
---|
618 |
|
---|
619 | =item Can't do setegid!
|
---|
620 |
|
---|
621 | (P) The setegid() call failed for some reason in the setuid emulator of
|
---|
622 | suidperl.
|
---|
623 |
|
---|
624 | =item Can't do seteuid!
|
---|
625 |
|
---|
626 | (P) The setuid emulator of suidperl failed for some reason.
|
---|
627 |
|
---|
628 | =item Can't do setuid
|
---|
629 |
|
---|
630 | (F) This typically means that ordinary perl tried to exec suidperl to do
|
---|
631 | setuid emulation, but couldn't exec it. It looks for a name of the form
|
---|
632 | sperl5.000 in the same directory that the perl executable resides under
|
---|
633 | the name perl5.000, typically /usr/local/bin on Unix machines. If the
|
---|
634 | file is there, check the execute permissions. If it isn't, ask your
|
---|
635 | sysadmin why he and/or she removed it.
|
---|
636 |
|
---|
637 | =item Can't do waitpid with flags
|
---|
638 |
|
---|
639 | (F) This machine doesn't have either waitpid() or wait4(), so only
|
---|
640 | waitpid() without flags is emulated.
|
---|
641 |
|
---|
642 | =item Can't emulate -%s on #! line
|
---|
643 |
|
---|
644 | (F) The #! line specifies a switch that doesn't make sense at this
|
---|
645 | point. For example, it'd be kind of silly to put a B<-x> on the #!
|
---|
646 | line.
|
---|
647 |
|
---|
648 | =item Can't exec "%s": %s
|
---|
649 |
|
---|
650 | (W exec) A system(), exec(), or piped open call could not execute the
|
---|
651 | named program for the indicated reason. Typical reasons include: the
|
---|
652 | permissions were wrong on the file, the file wasn't found in
|
---|
653 | C<$ENV{PATH}>, the executable in question was compiled for another
|
---|
654 | architecture, or the #! line in a script points to an interpreter that
|
---|
655 | can't be run for similar reasons. (Or maybe your system doesn't support
|
---|
656 | #! at all.)
|
---|
657 |
|
---|
658 | =item Can't exec %s
|
---|
659 |
|
---|
660 | (F) Perl was trying to execute the indicated program for you because
|
---|
661 | that's what the #! line said. If that's not what you wanted, you may
|
---|
662 | need to mention "perl" on the #! line somewhere.
|
---|
663 |
|
---|
664 | =item Can't execute %s
|
---|
665 |
|
---|
666 | (F) You used the B<-S> switch, but the copies of the script to execute
|
---|
667 | found in the PATH did not have correct permissions.
|
---|
668 |
|
---|
669 | =item Can't find an opnumber for "%s"
|
---|
670 |
|
---|
671 | (F) A string of a form C<CORE::word> was given to prototype(), but there
|
---|
672 | is no builtin with the name C<word>.
|
---|
673 |
|
---|
674 | =item Can't find %s character property "%s"
|
---|
675 |
|
---|
676 | (F) You used C<\p{}> or C<\P{}> but the character property by that name
|
---|
677 | could not be found. Maybe you misspelled the name of the property
|
---|
678 | (remember that the names of character properties consist only of
|
---|
679 | alphanumeric characters), or maybe you forgot the C<Is> or C<In> prefix?
|
---|
680 |
|
---|
681 | =item Can't find label %s
|
---|
682 |
|
---|
683 | (F) You said to goto a label that isn't mentioned anywhere that it's
|
---|
684 | possible for us to go to. See L<perlfunc/goto>.
|
---|
685 |
|
---|
686 | =item Can't find %s on PATH
|
---|
687 |
|
---|
688 | (F) You used the B<-S> switch, but the script to execute could not be
|
---|
689 | found in the PATH.
|
---|
690 |
|
---|
691 | =item Can't find %s on PATH, '.' not in PATH
|
---|
692 |
|
---|
693 | (F) You used the B<-S> switch, but the script to execute could not be
|
---|
694 | found in the PATH, or at least not with the correct permissions. The
|
---|
695 | script exists in the current directory, but PATH prohibits running it.
|
---|
696 |
|
---|
697 | =item Can't find %s property definition %s
|
---|
698 |
|
---|
699 | (F) You may have tried to use C<\p> which means a Unicode property (for
|
---|
700 | example C<\p{Lu}> is all uppercase letters). If you did mean to use a
|
---|
701 | Unicode property, see L<perlunicode> for the list of known properties.
|
---|
702 | If you didn't mean to use a Unicode property, escape the C<\p>, either
|
---|
703 | by C<\\p> (just the C<\p>) or by C<\Q\p> (the rest of the string, until
|
---|
704 | possible C<\E>).
|
---|
705 |
|
---|
706 | =item Can't find string terminator %s anywhere before EOF
|
---|
707 |
|
---|
708 | (F) Perl strings can stretch over multiple lines. This message means
|
---|
709 | that the closing delimiter was omitted. Because bracketed quotes count
|
---|
710 | nesting levels, the following is missing its final parenthesis:
|
---|
711 |
|
---|
712 | print q(The character '(' starts a side comment.);
|
---|
713 |
|
---|
714 | If you're getting this error from a here-document, you may have included
|
---|
715 | unseen whitespace before or after your closing tag. A good programmer's
|
---|
716 | editor will have a way to help you find these characters.
|
---|
717 |
|
---|
718 | =item Can't fork
|
---|
719 |
|
---|
720 | (F) A fatal error occurred while trying to fork while opening a
|
---|
721 | pipeline.
|
---|
722 |
|
---|
723 | =item Can't get filespec - stale stat buffer?
|
---|
724 |
|
---|
725 | (S) A warning peculiar to VMS. This arises because of the difference
|
---|
726 | between access checks under VMS and under the Unix model Perl assumes.
|
---|
727 | Under VMS, access checks are done by filename, rather than by bits in
|
---|
728 | the stat buffer, so that ACLs and other protections can be taken into
|
---|
729 | account. Unfortunately, Perl assumes that the stat buffer contains all
|
---|
730 | the necessary information, and passes it, instead of the filespec, to
|
---|
731 | the access checking routine. It will try to retrieve the filespec using
|
---|
732 | the device name and FID present in the stat buffer, but this works only
|
---|
733 | if you haven't made a subsequent call to the CRTL stat() routine,
|
---|
734 | because the device name is overwritten with each call. If this warning
|
---|
735 | appears, the name lookup failed, and the access checking routine gave up
|
---|
736 | and returned FALSE, just to be conservative. (Note: The access checking
|
---|
737 | routine knows about the Perl C<stat> operator and file tests, so you
|
---|
738 | shouldn't ever see this warning in response to a Perl command; it arises
|
---|
739 | only if some internal code takes stat buffers lightly.)
|
---|
740 |
|
---|
741 | =item Can't get pipe mailbox device name
|
---|
742 |
|
---|
743 | (P) An error peculiar to VMS. After creating a mailbox to act as a
|
---|
744 | pipe, Perl can't retrieve its name for later use.
|
---|
745 |
|
---|
746 | =item Can't get SYSGEN parameter value for MAXBUF
|
---|
747 |
|
---|
748 | (P) An error peculiar to VMS. Perl asked $GETSYI how big you want your
|
---|
749 | mailbox buffers to be, and didn't get an answer.
|
---|
750 |
|
---|
751 | =item Can't "goto" into the middle of a foreach loop
|
---|
752 |
|
---|
753 | (F) A "goto" statement was executed to jump into the middle of a foreach
|
---|
754 | loop. You can't get there from here. See L<perlfunc/goto>.
|
---|
755 |
|
---|
756 | =item Can't "goto" out of a pseudo block
|
---|
757 |
|
---|
758 | (F) A "goto" statement was executed to jump out of what might look like
|
---|
759 | a block, except that it isn't a proper block. This usually occurs if
|
---|
760 | you tried to jump out of a sort() block or subroutine, which is a no-no.
|
---|
761 | See L<perlfunc/goto>.
|
---|
762 |
|
---|
763 | =item Can't goto subroutine from an eval-%s
|
---|
764 |
|
---|
765 | (F) The "goto subroutine" call can't be used to jump out of an eval
|
---|
766 | "string" or block.
|
---|
767 |
|
---|
768 | =item Can't goto subroutine outside a subroutine
|
---|
769 |
|
---|
770 | (F) The deeply magical "goto subroutine" call can only replace one
|
---|
771 | subroutine call for another. It can't manufacture one out of whole
|
---|
772 | cloth. In general you should be calling it out of only an AUTOLOAD
|
---|
773 | routine anyway. See L<perlfunc/goto>.
|
---|
774 |
|
---|
775 | =item Can't ignore signal CHLD, forcing to default
|
---|
776 |
|
---|
777 | (W signal) Perl has detected that it is being run with the SIGCHLD
|
---|
778 | signal (sometimes known as SIGCLD) disabled. Since disabling this
|
---|
779 | signal will interfere with proper determination of exit status of child
|
---|
780 | processes, Perl has reset the signal to its default value. This
|
---|
781 | situation typically indicates that the parent program under which Perl
|
---|
782 | may be running (e.g. cron) is being very careless.
|
---|
783 |
|
---|
784 | =item Can't "last" outside a loop block
|
---|
785 |
|
---|
786 | (F) A "last" statement was executed to break out of the current block,
|
---|
787 | except that there's this itty bitty problem called there isn't a current
|
---|
788 | block. Note that an "if" or "else" block doesn't count as a "loopish"
|
---|
789 | block, as doesn't a block given to sort(), map() or grep(). You can
|
---|
790 | usually double the curlies to get the same effect though, because the
|
---|
791 | inner curlies will be considered a block that loops once. See
|
---|
792 | L<perlfunc/last>.
|
---|
793 |
|
---|
794 | =item Can't load '%s' for module %s
|
---|
795 |
|
---|
796 | (F) The module you tried to load failed to load a dynamic extension. This
|
---|
797 | may either mean that you upgraded your version of perl to one that is
|
---|
798 | incompatible with your old dynamic extensions (which is known to happen
|
---|
799 | between major versions of perl), or (more likely) that your dynamic
|
---|
800 | extension was built against an older version of the library that is
|
---|
801 | installed on your system. You may need to rebuild your old dynamic
|
---|
802 | extensions.
|
---|
803 |
|
---|
804 | =item Can't localize lexical variable %s
|
---|
805 |
|
---|
806 | (F) You used local on a variable name that was previously declared as a
|
---|
807 | lexical variable using "my". This is not allowed. If you want to
|
---|
808 | localize a package variable of the same name, qualify it with the
|
---|
809 | package name.
|
---|
810 |
|
---|
811 | =item Can't localize pseudo-hash element
|
---|
812 |
|
---|
813 | (F) You said something like C<< local $ar->{'key'} >>, where $ar is a
|
---|
814 | reference to a pseudo-hash. That hasn't been implemented yet, but you
|
---|
815 | can get a similar effect by localizing the corresponding array element
|
---|
816 | directly -- C<< local $ar->[$ar->[0]{'key'}] >>.
|
---|
817 |
|
---|
818 | =item Can't localize through a reference
|
---|
819 |
|
---|
820 | (F) You said something like C<local $$ref>, which Perl can't currently
|
---|
821 | handle, because when it goes to restore the old value of whatever $ref
|
---|
822 | pointed to after the scope of the local() is finished, it can't be sure
|
---|
823 | that $ref will still be a reference.
|
---|
824 |
|
---|
825 | =item Can't locate %s
|
---|
826 |
|
---|
827 | (F) You said to C<do> (or C<require>, or C<use>) a file that couldn't be
|
---|
828 | found. Perl looks for the file in all the locations mentioned in @INC,
|
---|
829 | unless the file name included the full path to the file. Perhaps you
|
---|
830 | need to set the PERL5LIB or PERL5OPT environment variable to say where
|
---|
831 | the extra library is, or maybe the script needs to add the library name
|
---|
832 | to @INC. Or maybe you just misspelled the name of the file. See
|
---|
833 | L<perlfunc/require> and L<lib>.
|
---|
834 |
|
---|
835 | =item Can't locate auto/%s.al in @INC
|
---|
836 |
|
---|
837 | (F) A function (or method) was called in a package which allows
|
---|
838 | autoload, but there is no function to autoload. Most probable causes
|
---|
839 | are a misprint in a function/method name or a failure to C<AutoSplit>
|
---|
840 | the file, say, by doing C<make install>.
|
---|
841 |
|
---|
842 | =item Can't locate loadable object for module %s in @INC
|
---|
843 |
|
---|
844 | (F) The module you loaded is trying to load an external library, like
|
---|
845 | for example, C<foo.so> or C<bar.dll>, but the L<DynaLoader> module was
|
---|
846 | unable to locate this library. See L<DynaLoader>.
|
---|
847 |
|
---|
848 | =item Can't locate object method "%s" via package "%s"
|
---|
849 |
|
---|
850 | (F) You called a method correctly, and it correctly indicated a package
|
---|
851 | functioning as a class, but that package doesn't define that particular
|
---|
852 | method, nor does any of its base classes. See L<perlobj>.
|
---|
853 |
|
---|
854 | =item Can't locate package %s for @%s::ISA
|
---|
855 |
|
---|
856 | (W syntax) The @ISA array contained the name of another package that
|
---|
857 | doesn't seem to exist.
|
---|
858 |
|
---|
859 | =item Can't locate PerlIO%s
|
---|
860 |
|
---|
861 | (F) You tried to use in open() a PerlIO layer that does not exist,
|
---|
862 | e.g. open(FH, ">:nosuchlayer", "somefile").
|
---|
863 |
|
---|
864 | =item Can't make list assignment to \%ENV on this system
|
---|
865 |
|
---|
866 | (F) List assignment to %ENV is not supported on some systems, notably
|
---|
867 | VMS.
|
---|
868 |
|
---|
869 | =item Can't modify %s in %s
|
---|
870 |
|
---|
871 | (F) You aren't allowed to assign to the item indicated, or otherwise try
|
---|
872 | to change it, such as with an auto-increment.
|
---|
873 |
|
---|
874 | =item Can't modify nonexistent substring
|
---|
875 |
|
---|
876 | (P) The internal routine that does assignment to a substr() was handed
|
---|
877 | a NULL.
|
---|
878 |
|
---|
879 | =item Can't modify non-lvalue subroutine call
|
---|
880 |
|
---|
881 | (F) Subroutines meant to be used in lvalue context should be declared as
|
---|
882 | such, see L<perlsub/"Lvalue subroutines">.
|
---|
883 |
|
---|
884 | =item Can't msgrcv to read-only var
|
---|
885 |
|
---|
886 | (F) The target of a msgrcv must be modifiable to be used as a receive
|
---|
887 | buffer.
|
---|
888 |
|
---|
889 | =item Can't "next" outside a loop block
|
---|
890 |
|
---|
891 | (F) A "next" statement was executed to reiterate the current block, but
|
---|
892 | there isn't a current block. Note that an "if" or "else" block doesn't
|
---|
893 | count as a "loopish" block, as doesn't a block given to sort(), map() or
|
---|
894 | grep(). You can usually double the curlies to get the same effect
|
---|
895 | though, because the inner curlies will be considered a block that loops
|
---|
896 | once. See L<perlfunc/next>.
|
---|
897 |
|
---|
898 | =item Can't open %s: %s
|
---|
899 |
|
---|
900 | (S inplace) The implicit opening of a file through use of the C<< <> >>
|
---|
901 | filehandle, either implicitly under the C<-n> or C<-p> command-line
|
---|
902 | switches, or explicitly, failed for the indicated reason. Usually this
|
---|
903 | is because you don't have read permission for a file which you named on
|
---|
904 | the command line.
|
---|
905 |
|
---|
906 | =item Can't open a reference
|
---|
907 |
|
---|
908 | (W io) You tried to open a scalar reference for reading or writing,
|
---|
909 | using the 3-arg open() syntax :
|
---|
910 |
|
---|
911 | open FH, '>', $ref;
|
---|
912 |
|
---|
913 | but your version of perl is compiled without perlio, and this form of
|
---|
914 | open is not supported.
|
---|
915 |
|
---|
916 | =item Can't open bidirectional pipe
|
---|
917 |
|
---|
918 | (W pipe) You tried to say C<open(CMD, "|cmd|")>, which is not supported.
|
---|
919 | You can try any of several modules in the Perl library to do this, such
|
---|
920 | as IPC::Open2. Alternately, direct the pipe's output to a file using
|
---|
921 | ">", and then read it in under a different file handle.
|
---|
922 |
|
---|
923 | =item Can't open error file %s as stderr
|
---|
924 |
|
---|
925 | (F) An error peculiar to VMS. Perl does its own command line
|
---|
926 | redirection, and couldn't open the file specified after '2>' or '2>>' on
|
---|
927 | the command line for writing.
|
---|
928 |
|
---|
929 | =item Can't open input file %s as stdin
|
---|
930 |
|
---|
931 | (F) An error peculiar to VMS. Perl does its own command line
|
---|
932 | redirection, and couldn't open the file specified after '<' on the
|
---|
933 | command line for reading.
|
---|
934 |
|
---|
935 | =item Can't open output file %s as stdout
|
---|
936 |
|
---|
937 | (F) An error peculiar to VMS. Perl does its own command line
|
---|
938 | redirection, and couldn't open the file specified after '>' or '>>' on
|
---|
939 | the command line for writing.
|
---|
940 |
|
---|
941 | =item Can't open output pipe (name: %s)
|
---|
942 |
|
---|
943 | (P) An error peculiar to VMS. Perl does its own command line
|
---|
944 | redirection, and couldn't open the pipe into which to send data destined
|
---|
945 | for stdout.
|
---|
946 |
|
---|
947 | =item Can't open perl script%s
|
---|
948 |
|
---|
949 | (F) The script you specified can't be opened for the indicated reason.
|
---|
950 |
|
---|
951 | If you're debugging a script that uses #!, and normally relies on the
|
---|
952 | shell's $PATH search, the -S option causes perl to do that search, so
|
---|
953 | you don't have to type the path or C<`which $scriptname`>.
|
---|
954 |
|
---|
955 | =item Can't read CRTL environ
|
---|
956 |
|
---|
957 | (S) A warning peculiar to VMS. Perl tried to read an element of %ENV
|
---|
958 | from the CRTL's internal environment array and discovered the array was
|
---|
959 | missing. You need to figure out where your CRTL misplaced its environ
|
---|
960 | or define F<PERL_ENV_TABLES> (see L<perlvms>) so that environ is not
|
---|
961 | searched.
|
---|
962 |
|
---|
963 | =item Can't redefine active sort subroutine %s
|
---|
964 |
|
---|
965 | (F) Perl optimizes the internal handling of sort subroutines and keeps
|
---|
966 | pointers into them. You tried to redefine one such sort subroutine when
|
---|
967 | it was currently active, which is not allowed. If you really want to do
|
---|
968 | this, you should write C<sort { &func } @x> instead of C<sort func @x>.
|
---|
969 |
|
---|
970 | =item Can't "redo" outside a loop block
|
---|
971 |
|
---|
972 | (F) A "redo" statement was executed to restart the current block, but
|
---|
973 | there isn't a current block. Note that an "if" or "else" block doesn't
|
---|
974 | count as a "loopish" block, as doesn't a block given to sort(), map()
|
---|
975 | or grep(). You can usually double the curlies to get the same effect
|
---|
976 | though, because the inner curlies will be considered a block that
|
---|
977 | loops once. See L<perlfunc/redo>.
|
---|
978 |
|
---|
979 | =item Can't remove %s: %s, skipping file
|
---|
980 |
|
---|
981 | (S inplace) You requested an inplace edit without creating a backup
|
---|
982 | file. Perl was unable to remove the original file to replace it with
|
---|
983 | the modified file. The file was left unmodified.
|
---|
984 |
|
---|
985 | =item Can't rename %s to %s: %s, skipping file
|
---|
986 |
|
---|
987 | (S inplace) The rename done by the B<-i> switch failed for some reason,
|
---|
988 | probably because you don't have write permission to the directory.
|
---|
989 |
|
---|
990 | =item Can't reopen input pipe (name: %s) in binary mode
|
---|
991 |
|
---|
992 | (P) An error peculiar to VMS. Perl thought stdin was a pipe, and tried
|
---|
993 | to reopen it to accept binary data. Alas, it failed.
|
---|
994 |
|
---|
995 | =item Can't resolve method `%s' overloading `%s' in package `%s'
|
---|
996 |
|
---|
997 | (F|P) Error resolving overloading specified by a method name (as opposed
|
---|
998 | to a subroutine reference): no such method callable via the package. If
|
---|
999 | method name is C<???>, this is an internal error.
|
---|
1000 |
|
---|
1001 | =item Can't reswap uid and euid
|
---|
1002 |
|
---|
1003 | (P) The setreuid() call failed for some reason in the setuid emulator of
|
---|
1004 | suidperl.
|
---|
1005 |
|
---|
1006 | =item Can't return %s from lvalue subroutine
|
---|
1007 |
|
---|
1008 | (F) Perl detected an attempt to return illegal lvalues (such as
|
---|
1009 | temporary or readonly values) from a subroutine used as an lvalue. This
|
---|
1010 | is not allowed.
|
---|
1011 |
|
---|
1012 | =item Can't return outside a subroutine
|
---|
1013 |
|
---|
1014 | (F) The return statement was executed in mainline code, that is, where
|
---|
1015 | there was no subroutine call to return out of. See L<perlsub>.
|
---|
1016 |
|
---|
1017 | =item Can't return %s to lvalue scalar context
|
---|
1018 |
|
---|
1019 | (F) You tried to return a complete array or hash from an lvalue subroutine,
|
---|
1020 | but you called the subroutine in a way that made Perl think you meant
|
---|
1021 | to return only one value. You probably meant to write parentheses around
|
---|
1022 | the call to the subroutine, which tell Perl that the call should be in
|
---|
1023 | list context.
|
---|
1024 |
|
---|
1025 | =item Can't stat script "%s"
|
---|
1026 |
|
---|
1027 | (P) For some reason you can't fstat() the script even though you have it
|
---|
1028 | open already. Bizarre.
|
---|
1029 |
|
---|
1030 | =item Can't swap uid and euid
|
---|
1031 |
|
---|
1032 | (P) The setreuid() call failed for some reason in the setuid emulator of
|
---|
1033 | suidperl.
|
---|
1034 |
|
---|
1035 | =item Can't take log of %g
|
---|
1036 |
|
---|
1037 | (F) For ordinary real numbers, you can't take the logarithm of a
|
---|
1038 | negative number or zero. There's a Math::Complex package that comes
|
---|
1039 | standard with Perl, though, if you really want to do that for the
|
---|
1040 | negative numbers.
|
---|
1041 |
|
---|
1042 | =item Can't take sqrt of %g
|
---|
1043 |
|
---|
1044 | (F) For ordinary real numbers, you can't take the square root of a
|
---|
1045 | negative number. There's a Math::Complex package that comes standard
|
---|
1046 | with Perl, though, if you really want to do that.
|
---|
1047 |
|
---|
1048 | =item Can't undef active subroutine
|
---|
1049 |
|
---|
1050 | (F) You can't undefine a routine that's currently running. You can,
|
---|
1051 | however, redefine it while it's running, and you can even undef the
|
---|
1052 | redefined subroutine while the old routine is running. Go figure.
|
---|
1053 |
|
---|
1054 | =item Can't unshift
|
---|
1055 |
|
---|
1056 | (F) You tried to unshift an "unreal" array that can't be unshifted, such
|
---|
1057 | as the main Perl stack.
|
---|
1058 |
|
---|
1059 | =item Can't upgrade that kind of scalar
|
---|
1060 |
|
---|
1061 | (P) The internal sv_upgrade routine adds "members" to an SV, making it
|
---|
1062 | into a more specialized kind of SV. The top several SV types are so
|
---|
1063 | specialized, however, that they cannot be interconverted. This message
|
---|
1064 | indicates that such a conversion was attempted.
|
---|
1065 |
|
---|
1066 | =item Can't upgrade to undef
|
---|
1067 |
|
---|
1068 | (P) The undefined SV is the bottom of the totem pole, in the scheme of
|
---|
1069 | upgradability. Upgrading to undef indicates an error in the code
|
---|
1070 | calling sv_upgrade.
|
---|
1071 |
|
---|
1072 | =item Can't use anonymous symbol table for method lookup
|
---|
1073 |
|
---|
1074 | (F) The internal routine that does method lookup was handed a symbol
|
---|
1075 | table that doesn't have a name. Symbol tables can become anonymous
|
---|
1076 | for example by undefining stashes: C<undef %Some::Package::>.
|
---|
1077 |
|
---|
1078 | =item Can't use an undefined value as %s reference
|
---|
1079 |
|
---|
1080 | (F) A value used as either a hard reference or a symbolic reference must
|
---|
1081 | be a defined value. This helps to delurk some insidious errors.
|
---|
1082 |
|
---|
1083 | =item Can't use bareword ("%s") as %s ref while "strict refs" in use
|
---|
1084 |
|
---|
1085 | (F) Only hard references are allowed by "strict refs". Symbolic
|
---|
1086 | references are disallowed. See L<perlref>.
|
---|
1087 |
|
---|
1088 | =item Can't use %! because Errno.pm is not available
|
---|
1089 |
|
---|
1090 | (F) The first time the %! hash is used, perl automatically loads the
|
---|
1091 | Errno.pm module. The Errno module is expected to tie the %! hash to
|
---|
1092 | provide symbolic names for C<$!> errno values.
|
---|
1093 |
|
---|
1094 | =item Can't use %s for loop variable
|
---|
1095 |
|
---|
1096 | (F) Only a simple scalar variable may be used as a loop variable on a
|
---|
1097 | foreach.
|
---|
1098 |
|
---|
1099 | =item Can't use global %s in "my"
|
---|
1100 |
|
---|
1101 | (F) You tried to declare a magical variable as a lexical variable. This
|
---|
1102 | is not allowed, because the magic can be tied to only one location
|
---|
1103 | (namely the global variable) and it would be incredibly confusing to
|
---|
1104 | have variables in your program that looked like magical variables but
|
---|
1105 | weren't.
|
---|
1106 |
|
---|
1107 | =item Can't use "my %s" in sort comparison
|
---|
1108 |
|
---|
1109 | (F) The global variables $a and $b are reserved for sort comparisons.
|
---|
1110 | You mentioned $a or $b in the same line as the <=> or cmp operator,
|
---|
1111 | and the variable had earlier been declared as a lexical variable.
|
---|
1112 | Either qualify the sort variable with the package name, or rename the
|
---|
1113 | lexical variable.
|
---|
1114 |
|
---|
1115 | =item Can't use %s ref as %s ref
|
---|
1116 |
|
---|
1117 | (F) You've mixed up your reference types. You have to dereference a
|
---|
1118 | reference of the type needed. You can use the ref() function to
|
---|
1119 | test the type of the reference, if need be.
|
---|
1120 |
|
---|
1121 | =item Can't use string ("%s") as %s ref while "strict refs" in use
|
---|
1122 |
|
---|
1123 | (F) Only hard references are allowed by "strict refs". Symbolic
|
---|
1124 | references are disallowed. See L<perlref>.
|
---|
1125 |
|
---|
1126 | =item Can't use subscript on %s
|
---|
1127 |
|
---|
1128 | (F) The compiler tried to interpret a bracketed expression as a
|
---|
1129 | subscript. But to the left of the brackets was an expression that
|
---|
1130 | didn't look like a hash or array reference, or anything else subscriptable.
|
---|
1131 |
|
---|
1132 | =item Can't use \%c to mean $%c in expression
|
---|
1133 |
|
---|
1134 | (W syntax) In an ordinary expression, backslash is a unary operator that
|
---|
1135 | creates a reference to its argument. The use of backslash to indicate a
|
---|
1136 | backreference to a matched substring is valid only as part of a regular
|
---|
1137 | expression pattern. Trying to do this in ordinary Perl code produces a
|
---|
1138 | value that prints out looking like SCALAR(0xdecaf). Use the $1 form
|
---|
1139 | instead.
|
---|
1140 |
|
---|
1141 | =item Can't weaken a nonreference
|
---|
1142 |
|
---|
1143 | (F) You attempted to weaken something that was not a reference. Only
|
---|
1144 | references can be weakened.
|
---|
1145 |
|
---|
1146 | =item Can't x= to read-only value
|
---|
1147 |
|
---|
1148 | (F) You tried to repeat a constant value (often the undefined value)
|
---|
1149 | with an assignment operator, which implies modifying the value itself.
|
---|
1150 | Perhaps you need to copy the value to a temporary, and repeat that.
|
---|
1151 |
|
---|
1152 | =item Character in "C" format wrapped in pack
|
---|
1153 |
|
---|
1154 | (W pack) You said
|
---|
1155 |
|
---|
1156 | pack("C", $x)
|
---|
1157 |
|
---|
1158 | where $x is either less than 0 or more than 255; the C<"C"> format is
|
---|
1159 | only for encoding native operating system characters (ASCII, EBCDIC,
|
---|
1160 | and so on) and not for Unicode characters, so Perl behaved as if you meant
|
---|
1161 |
|
---|
1162 | pack("C", $x & 255)
|
---|
1163 |
|
---|
1164 | If you actually want to pack Unicode codepoints, use the C<"U"> format
|
---|
1165 | instead.
|
---|
1166 |
|
---|
1167 | =item Character in "c" format wrapped in pack
|
---|
1168 |
|
---|
1169 | (W pack) You said
|
---|
1170 |
|
---|
1171 | pack("c", $x)
|
---|
1172 |
|
---|
1173 | where $x is either less than -128 or more than 127; the C<"c"> format
|
---|
1174 | is only for encoding native operating system characters (ASCII, EBCDIC,
|
---|
1175 | and so on) and not for Unicode characters, so Perl behaved as if you meant
|
---|
1176 |
|
---|
1177 | pack("c", $x & 255);
|
---|
1178 |
|
---|
1179 | If you actually want to pack Unicode codepoints, use the C<"U"> format
|
---|
1180 | instead.
|
---|
1181 |
|
---|
1182 | =item close() on unopened filehandle %s
|
---|
1183 |
|
---|
1184 | (W unopened) You tried to close a filehandle that was never opened.
|
---|
1185 |
|
---|
1186 | =item Code missing after '/'
|
---|
1187 |
|
---|
1188 | (F) You had a (sub-)template that ends with a '/'. There must be another
|
---|
1189 | template code following the slash. See L<perlfunc/pack>.
|
---|
1190 |
|
---|
1191 | =item %s: Command not found
|
---|
1192 |
|
---|
1193 | (A) You've accidentally run your script through B<csh> instead of Perl.
|
---|
1194 | Check the #! line, or manually feed your script into Perl yourself.
|
---|
1195 |
|
---|
1196 | =item Compilation failed in require
|
---|
1197 |
|
---|
1198 | (F) Perl could not compile a file specified in a C<require> statement.
|
---|
1199 | Perl uses this generic message when none of the errors that it
|
---|
1200 | encountered were severe enough to halt compilation immediately.
|
---|
1201 |
|
---|
1202 | =item Complex regular subexpression recursion limit (%d) exceeded
|
---|
1203 |
|
---|
1204 | (W regexp) The regular expression engine uses recursion in complex
|
---|
1205 | situations where back-tracking is required. Recursion depth is limited
|
---|
1206 | to 32766, or perhaps less in architectures where the stack cannot grow
|
---|
1207 | arbitrarily. ("Simple" and "medium" situations are handled without
|
---|
1208 | recursion and are not subject to a limit.) Try shortening the string
|
---|
1209 | under examination; looping in Perl code (e.g. with C<while>) rather than
|
---|
1210 | in the regular expression engine; or rewriting the regular expression so
|
---|
1211 | that it is simpler or backtracks less. (See L<perlfaq2> for information
|
---|
1212 | on I<Mastering Regular Expressions>.)
|
---|
1213 |
|
---|
1214 | =item cond_broadcast() called on unlocked variable
|
---|
1215 |
|
---|
1216 | (W threads) Within a thread-enabled program, you tried to call
|
---|
1217 | cond_broadcast() on a variable which wasn't locked. The cond_broadcast()
|
---|
1218 | function is used to wake up another thread that is waiting in a
|
---|
1219 | cond_wait(). To ensure that the signal isn't sent before the other thread
|
---|
1220 | has a chance to enter the wait, it is usual for the signaling thread to
|
---|
1221 | first wait for a lock on variable. This lock attempt will only succeed
|
---|
1222 | after the other thread has entered cond_wait() and thus relinquished the
|
---|
1223 | lock.
|
---|
1224 |
|
---|
1225 | =item cond_signal() called on unlocked variable
|
---|
1226 |
|
---|
1227 | (W threads) Within a thread-enabled program, you tried to call
|
---|
1228 | cond_signal() on a variable which wasn't locked. The cond_signal()
|
---|
1229 | function is used to wake up another thread that is waiting in a
|
---|
1230 | cond_wait(). To ensure that the signal isn't sent before the other thread
|
---|
1231 | has a chance to enter the wait, it is usual for the signaling thread to
|
---|
1232 | first wait for a lock on variable. This lock attempt will only succeed
|
---|
1233 | after the other thread has entered cond_wait() and thus relinquished the
|
---|
1234 | lock.
|
---|
1235 |
|
---|
1236 | =item connect() on closed socket %s
|
---|
1237 |
|
---|
1238 | (W closed) You tried to do a connect on a closed socket. Did you forget
|
---|
1239 | to check the return value of your socket() call? See
|
---|
1240 | L<perlfunc/connect>.
|
---|
1241 |
|
---|
1242 | =item Constant(%s)%s: %s
|
---|
1243 |
|
---|
1244 | (F) The parser found inconsistencies either while attempting to define
|
---|
1245 | an overloaded constant, or when trying to find the character name
|
---|
1246 | specified in the C<\N{...}> escape. Perhaps you forgot to load the
|
---|
1247 | corresponding C<overload> or C<charnames> pragma? See L<charnames> and
|
---|
1248 | L<overload>.
|
---|
1249 |
|
---|
1250 | =item Constant is not %s reference
|
---|
1251 |
|
---|
1252 | (F) A constant value (perhaps declared using the C<use constant> pragma)
|
---|
1253 | is being dereferenced, but it amounts to the wrong type of reference.
|
---|
1254 | The message indicates the type of reference that was expected. This
|
---|
1255 | usually indicates a syntax error in dereferencing the constant value.
|
---|
1256 | See L<perlsub/"Constant Functions"> and L<constant>.
|
---|
1257 |
|
---|
1258 | =item Constant subroutine %s redefined
|
---|
1259 |
|
---|
1260 | (S) You redefined a subroutine which had previously been
|
---|
1261 | eligible for inlining. See L<perlsub/"Constant Functions"> for
|
---|
1262 | commentary and workarounds.
|
---|
1263 |
|
---|
1264 | =item Constant subroutine %s undefined
|
---|
1265 |
|
---|
1266 | (W misc) You undefined a subroutine which had previously been eligible
|
---|
1267 | for inlining. See L<perlsub/"Constant Functions"> for commentary and
|
---|
1268 | workarounds.
|
---|
1269 |
|
---|
1270 | =item Copy method did not return a reference
|
---|
1271 |
|
---|
1272 | (F) The method which overloads "=" is buggy. See
|
---|
1273 | L<overload/Copy Constructor>.
|
---|
1274 |
|
---|
1275 | =item CORE::%s is not a keyword
|
---|
1276 |
|
---|
1277 | (F) The CORE:: namespace is reserved for Perl keywords.
|
---|
1278 |
|
---|
1279 | =item corrupted regexp pointers
|
---|
1280 |
|
---|
1281 | (P) The regular expression engine got confused by what the regular
|
---|
1282 | expression compiler gave it.
|
---|
1283 |
|
---|
1284 | =item corrupted regexp program
|
---|
1285 |
|
---|
1286 | (P) The regular expression engine got passed a regexp program without a
|
---|
1287 | valid magic number.
|
---|
1288 |
|
---|
1289 | =item Corrupt malloc ptr 0x%lx at 0x%lx
|
---|
1290 |
|
---|
1291 | (P) The malloc package that comes with Perl had an internal failure.
|
---|
1292 |
|
---|
1293 | =item Count after length/code in unpack
|
---|
1294 |
|
---|
1295 | (F) You had an unpack template indicating a counted-length string, but
|
---|
1296 | you have also specified an explicit size for the string. See
|
---|
1297 | L<perlfunc/pack>.
|
---|
1298 |
|
---|
1299 | =item Deep recursion on subroutine "%s"
|
---|
1300 |
|
---|
1301 | (W recursion) This subroutine has called itself (directly or indirectly)
|
---|
1302 | 100 times more than it has returned. This probably indicates an
|
---|
1303 | infinite recursion, unless you're writing strange benchmark programs, in
|
---|
1304 | which case it indicates something else.
|
---|
1305 |
|
---|
1306 | =item defined(@array) is deprecated
|
---|
1307 |
|
---|
1308 | (D deprecated) defined() is not usually useful on arrays because it
|
---|
1309 | checks for an undefined I<scalar> value. If you want to see if the
|
---|
1310 | array is empty, just use C<if (@array) { # not empty }> for example.
|
---|
1311 |
|
---|
1312 | =item defined(%hash) is deprecated
|
---|
1313 |
|
---|
1314 | (D deprecated) defined() is not usually useful on hashes because it
|
---|
1315 | checks for an undefined I<scalar> value. If you want to see if the hash
|
---|
1316 | is empty, just use C<if (%hash) { # not empty }> for example.
|
---|
1317 |
|
---|
1318 | =item %s defines neither package nor VERSION--version check failed
|
---|
1319 |
|
---|
1320 | (F) You said something like "use Module 42" but in the Module file
|
---|
1321 | there are neither package declarations nor a C<$VERSION>.
|
---|
1322 |
|
---|
1323 | =item Delimiter for here document is too long
|
---|
1324 |
|
---|
1325 | (F) In a here document construct like C<<<FOO>, the label C<FOO> is too
|
---|
1326 | long for Perl to handle. You have to be seriously twisted to write code
|
---|
1327 | that triggers this error.
|
---|
1328 |
|
---|
1329 | =item DESTROY created new reference to dead object '%s'
|
---|
1330 |
|
---|
1331 | (F) A DESTROY() method created a new reference to the object which is
|
---|
1332 | just being DESTROYed. Perl is confused, and prefers to abort rather than
|
---|
1333 | to create a dangling reference.
|
---|
1334 |
|
---|
1335 | =item Did not produce a valid header
|
---|
1336 |
|
---|
1337 | See Server error.
|
---|
1338 |
|
---|
1339 | =item %s did not return a true value
|
---|
1340 |
|
---|
1341 | (F) A required (or used) file must return a true value to indicate that
|
---|
1342 | it compiled correctly and ran its initialization code correctly. It's
|
---|
1343 | traditional to end such a file with a "1;", though any true value would
|
---|
1344 | do. See L<perlfunc/require>.
|
---|
1345 |
|
---|
1346 | =item (Did you mean &%s instead?)
|
---|
1347 |
|
---|
1348 | (W) You probably referred to an imported subroutine &FOO as $FOO or some
|
---|
1349 | such.
|
---|
1350 |
|
---|
1351 | =item (Did you mean "local" instead of "our"?)
|
---|
1352 |
|
---|
1353 | (W misc) Remember that "our" does not localize the declared global
|
---|
1354 | variable. You have declared it again in the same lexical scope, which
|
---|
1355 | seems superfluous.
|
---|
1356 |
|
---|
1357 | =item (Did you mean $ or @ instead of %?)
|
---|
1358 |
|
---|
1359 | (W) You probably said %hash{$key} when you meant $hash{$key} or
|
---|
1360 | @hash{@keys}. On the other hand, maybe you just meant %hash and got
|
---|
1361 | carried away.
|
---|
1362 |
|
---|
1363 | =item Died
|
---|
1364 |
|
---|
1365 | (F) You passed die() an empty string (the equivalent of C<die "">) or
|
---|
1366 | you called it with no args and both C<$@> and C<$_> were empty.
|
---|
1367 |
|
---|
1368 | =item Document contains no data
|
---|
1369 |
|
---|
1370 | See Server error.
|
---|
1371 |
|
---|
1372 | =item %s does not define %s::VERSION--version check failed
|
---|
1373 |
|
---|
1374 | (F) You said something like "use Module 42" but the Module did not
|
---|
1375 | define a C<$VERSION.>
|
---|
1376 |
|
---|
1377 | =item '/' does not take a repeat count
|
---|
1378 |
|
---|
1379 | (F) You cannot put a repeat count of any kind right after the '/' code.
|
---|
1380 | See L<perlfunc/pack>.
|
---|
1381 |
|
---|
1382 | =item Don't know how to handle magic of type '%s'
|
---|
1383 |
|
---|
1384 | (P) The internal handling of magical variables has been cursed.
|
---|
1385 |
|
---|
1386 | =item do_study: out of memory
|
---|
1387 |
|
---|
1388 | (P) This should have been caught by safemalloc() instead.
|
---|
1389 |
|
---|
1390 | =item (Do you need to predeclare %s?)
|
---|
1391 |
|
---|
1392 | (S syntax) This is an educated guess made in conjunction with the message
|
---|
1393 | "%s found where operator expected". It often means a subroutine or module
|
---|
1394 | name is being referenced that hasn't been declared yet. This may be
|
---|
1395 | because of ordering problems in your file, or because of a missing
|
---|
1396 | "sub", "package", "require", or "use" statement. If you're referencing
|
---|
1397 | something that isn't defined yet, you don't actually have to define the
|
---|
1398 | subroutine or package before the current location. You can use an empty
|
---|
1399 | "sub foo;" or "package FOO;" to enter a "forward" declaration.
|
---|
1400 |
|
---|
1401 | =item dump() better written as CORE::dump()
|
---|
1402 |
|
---|
1403 | (W misc) You used the obsolescent C<dump()> built-in function, without fully
|
---|
1404 | qualifying it as C<CORE::dump()>. Maybe it's a typo. See L<perlfunc/dump>.
|
---|
1405 |
|
---|
1406 | =item Duplicate free() ignored
|
---|
1407 |
|
---|
1408 | (S malloc) An internal routine called free() on something that had
|
---|
1409 | already been freed.
|
---|
1410 |
|
---|
1411 | =item Duplicate modifier '%c' after '%c' in %s
|
---|
1412 |
|
---|
1413 | (W) You have applied the same modifier more than once after a type
|
---|
1414 | in a pack template. See L<perlfunc/pack>.
|
---|
1415 |
|
---|
1416 | =item elseif should be elsif
|
---|
1417 |
|
---|
1418 | (S syntax) There is no keyword "elseif" in Perl because Larry thinks it's
|
---|
1419 | ugly. Your code will be interpreted as an attempt to call a method named
|
---|
1420 | "elseif" for the class returned by the following block. This is
|
---|
1421 | unlikely to be what you want.
|
---|
1422 |
|
---|
1423 | =item Empty %s
|
---|
1424 |
|
---|
1425 | (F) C<\p> and C<\P> are used to introduce a named Unicode property, as
|
---|
1426 | described in L<perlunicode> and L<perlre>. You used C<\p> or C<\P> in
|
---|
1427 | a regular expression without specifying the property name.
|
---|
1428 |
|
---|
1429 | =item entering effective %s failed
|
---|
1430 |
|
---|
1431 | (F) While under the C<use filetest> pragma, switching the real and
|
---|
1432 | effective uids or gids failed.
|
---|
1433 |
|
---|
1434 | =item %ENV is aliased to %s
|
---|
1435 |
|
---|
1436 | (F) You're running under taint mode, and the C<%ENV> variable has been
|
---|
1437 | aliased to another hash, so it doesn't reflect anymore the state of the
|
---|
1438 | program's environment. This is potentially insecure.
|
---|
1439 |
|
---|
1440 | =item Error converting file specification %s
|
---|
1441 |
|
---|
1442 | (F) An error peculiar to VMS. Because Perl may have to deal with file
|
---|
1443 | specifications in either VMS or Unix syntax, it converts them to a
|
---|
1444 | single form when it must operate on them directly. Either you've passed
|
---|
1445 | an invalid file specification to Perl, or you've found a case the
|
---|
1446 | conversion routines don't handle. Drat.
|
---|
1447 |
|
---|
1448 | =item %s: Eval-group in insecure regular expression
|
---|
1449 |
|
---|
1450 | (F) Perl detected tainted data when trying to compile a regular
|
---|
1451 | expression that contains the C<(?{ ... })> zero-width assertion, which
|
---|
1452 | is unsafe. See L<perlre/(?{ code })>, and L<perlsec>.
|
---|
1453 |
|
---|
1454 | =item %s: Eval-group not allowed at run time
|
---|
1455 |
|
---|
1456 | (F) Perl tried to compile a regular expression containing the
|
---|
1457 | C<(?{ ... })> zero-width assertion at run time, as it would when the
|
---|
1458 | pattern contains interpolated values. Since that is a security risk, it
|
---|
1459 | is not allowed. If you insist, you may still do this by explicitly
|
---|
1460 | building the pattern from an interpolated string at run time and using
|
---|
1461 | that in an eval(). See L<perlre/(?{ code })>.
|
---|
1462 |
|
---|
1463 | =item %s: Eval-group not allowed, use re 'eval'
|
---|
1464 |
|
---|
1465 | (F) A regular expression contained the C<(?{ ... })> zero-width
|
---|
1466 | assertion, but that construct is only allowed when the C<use re 'eval'>
|
---|
1467 | pragma is in effect. See L<perlre/(?{ code })>.
|
---|
1468 |
|
---|
1469 | =item Excessively long <> operator
|
---|
1470 |
|
---|
1471 | (F) The contents of a <> operator may not exceed the maximum size of a
|
---|
1472 | Perl identifier. If you're just trying to glob a long list of
|
---|
1473 | filenames, try using the glob() operator, or put the filenames into a
|
---|
1474 | variable and glob that.
|
---|
1475 |
|
---|
1476 | =item exec? I'm not *that* kind of operating system
|
---|
1477 |
|
---|
1478 | (F) The C<exec> function is not implemented in MacPerl. See L<perlport>.
|
---|
1479 |
|
---|
1480 | =item Execution of %s aborted due to compilation errors
|
---|
1481 |
|
---|
1482 | (F) The final summary message when a Perl compilation fails.
|
---|
1483 |
|
---|
1484 | =item Exiting eval via %s
|
---|
1485 |
|
---|
1486 | (W exiting) You are exiting an eval by unconventional means, such as a
|
---|
1487 | goto, or a loop control statement.
|
---|
1488 |
|
---|
1489 | =item Exiting format via %s
|
---|
1490 |
|
---|
1491 | (W exiting) You are exiting a format by unconventional means, such as a
|
---|
1492 | goto, or a loop control statement.
|
---|
1493 |
|
---|
1494 | =item Exiting pseudo-block via %s
|
---|
1495 |
|
---|
1496 | (W exiting) You are exiting a rather special block construct (like a
|
---|
1497 | sort block or subroutine) by unconventional means, such as a goto, or a
|
---|
1498 | loop control statement. See L<perlfunc/sort>.
|
---|
1499 |
|
---|
1500 | =item Exiting subroutine via %s
|
---|
1501 |
|
---|
1502 | (W exiting) You are exiting a subroutine by unconventional means, such
|
---|
1503 | as a goto, or a loop control statement.
|
---|
1504 |
|
---|
1505 | =item Exiting substitution via %s
|
---|
1506 |
|
---|
1507 | (W exiting) You are exiting a substitution by unconventional means, such
|
---|
1508 | as a return, a goto, or a loop control statement.
|
---|
1509 |
|
---|
1510 | =item Explicit blessing to '' (assuming package main)
|
---|
1511 |
|
---|
1512 | (W misc) You are blessing a reference to a zero length string. This has
|
---|
1513 | the effect of blessing the reference into the package main. This is
|
---|
1514 | usually not what you want. Consider providing a default target package,
|
---|
1515 | e.g. bless($ref, $p || 'MyPackage');
|
---|
1516 |
|
---|
1517 | =item %s: Expression syntax
|
---|
1518 |
|
---|
1519 | (A) You've accidentally run your script through B<csh> instead of Perl.
|
---|
1520 | Check the #! line, or manually feed your script into Perl yourself.
|
---|
1521 |
|
---|
1522 | =item %s failed--call queue aborted
|
---|
1523 |
|
---|
1524 | (F) An untrapped exception was raised while executing a CHECK, INIT, or
|
---|
1525 | END subroutine. Processing of the remainder of the queue of such
|
---|
1526 | routines has been prematurely ended.
|
---|
1527 |
|
---|
1528 | =item False [] range "%s" in regex; marked by <-- HERE in m/%s/
|
---|
1529 |
|
---|
1530 | (W regexp) A character class range must start and end at a literal
|
---|
1531 | character, not another character class like C<\d> or C<[:alpha:]>. The "-"
|
---|
1532 | in your false range is interpreted as a literal "-". Consider quoting the
|
---|
1533 | "-", "\-". The <-- HERE shows in the regular expression about where the
|
---|
1534 | problem was discovered. See L<perlre>.
|
---|
1535 |
|
---|
1536 | =item Fatal VMS error at %s, line %d
|
---|
1537 |
|
---|
1538 | (P) An error peculiar to VMS. Something untoward happened in a VMS
|
---|
1539 | system service or RTL routine; Perl's exit status should provide more
|
---|
1540 | details. The filename in "at %s" and the line number in "line %d" tell
|
---|
1541 | you which section of the Perl source code is distressed.
|
---|
1542 |
|
---|
1543 | =item fcntl is not implemented
|
---|
1544 |
|
---|
1545 | (F) Your machine apparently doesn't implement fcntl(). What is this, a
|
---|
1546 | PDP-11 or something?
|
---|
1547 |
|
---|
1548 | =item Filehandle %s opened only for input
|
---|
1549 |
|
---|
1550 | (W io) You tried to write on a read-only filehandle. If you intended
|
---|
1551 | it to be a read-write filehandle, you needed to open it with "+<" or
|
---|
1552 | "+>" or "+>>" instead of with "<" or nothing. If you intended only to
|
---|
1553 | write the file, use ">" or ">>". See L<perlfunc/open>.
|
---|
1554 |
|
---|
1555 | =item Filehandle %s opened only for output
|
---|
1556 |
|
---|
1557 | (W io) You tried to read from a filehandle opened only for writing, If
|
---|
1558 | you intended it to be a read/write filehandle, you needed to open it
|
---|
1559 | with "+<" or "+>" or "+>>" instead of with "<" or nothing. If you
|
---|
1560 | intended only to read from the file, use "<". See L<perlfunc/open>.
|
---|
1561 | Another possibility is that you attempted to open filedescriptor 0
|
---|
1562 | (also known as STDIN) for output (maybe you closed STDIN earlier?).
|
---|
1563 |
|
---|
1564 | =item Filehandle %s reopened as %s only for input
|
---|
1565 |
|
---|
1566 | (W io) You opened for reading a filehandle that got the same filehandle id
|
---|
1567 | as STDOUT or STDERR. This occurred because you closed STDOUT or STDERR
|
---|
1568 | previously.
|
---|
1569 |
|
---|
1570 | =item Filehandle STDIN reopened as %s only for output
|
---|
1571 |
|
---|
1572 | (W io) You opened for writing a filehandle that got the same filehandle id
|
---|
1573 | as STDIN. This occurred because you closed STDIN previously.
|
---|
1574 |
|
---|
1575 | =item Final $ should be \$ or $name
|
---|
1576 |
|
---|
1577 | (F) You must now decide whether the final $ in a string was meant to be
|
---|
1578 | a literal dollar sign, or was meant to introduce a variable name that
|
---|
1579 | happens to be missing. So you have to put either the backslash or the
|
---|
1580 | name.
|
---|
1581 |
|
---|
1582 | =item flock() on closed filehandle %s
|
---|
1583 |
|
---|
1584 | (W closed) The filehandle you're attempting to flock() got itself closed
|
---|
1585 | some time before now. Check your control flow. flock() operates on
|
---|
1586 | filehandles. Are you attempting to call flock() on a dirhandle by the
|
---|
1587 | same name?
|
---|
1588 |
|
---|
1589 | =item Format not terminated
|
---|
1590 |
|
---|
1591 | (F) A format must be terminated by a line with a solitary dot. Perl got
|
---|
1592 | to the end of your file without finding such a line.
|
---|
1593 |
|
---|
1594 | =item Format %s redefined
|
---|
1595 |
|
---|
1596 | (W redefine) You redefined a format. To suppress this warning, say
|
---|
1597 |
|
---|
1598 | {
|
---|
1599 | no warnings 'redefine';
|
---|
1600 | eval "format NAME =...";
|
---|
1601 | }
|
---|
1602 |
|
---|
1603 | =item Found = in conditional, should be ==
|
---|
1604 |
|
---|
1605 | (W syntax) You said
|
---|
1606 |
|
---|
1607 | if ($foo = 123)
|
---|
1608 |
|
---|
1609 | when you meant
|
---|
1610 |
|
---|
1611 | if ($foo == 123)
|
---|
1612 |
|
---|
1613 | (or something like that).
|
---|
1614 |
|
---|
1615 | =item %s found where operator expected
|
---|
1616 |
|
---|
1617 | (S syntax) The Perl lexer knows whether to expect a term or an operator.
|
---|
1618 | If it sees what it knows to be a term when it was expecting to see an
|
---|
1619 | operator, it gives you this warning. Usually it indicates that an
|
---|
1620 | operator or delimiter was omitted, such as a semicolon.
|
---|
1621 |
|
---|
1622 | =item gdbm store returned %d, errno %d, key "%s"
|
---|
1623 |
|
---|
1624 | (S) A warning from the GDBM_File extension that a store failed.
|
---|
1625 |
|
---|
1626 | =item gethostent not implemented
|
---|
1627 |
|
---|
1628 | (F) Your C library apparently doesn't implement gethostent(), probably
|
---|
1629 | because if it did, it'd feel morally obligated to return every hostname
|
---|
1630 | on the Internet.
|
---|
1631 |
|
---|
1632 | =item get%sname() on closed socket %s
|
---|
1633 |
|
---|
1634 | (W closed) You tried to get a socket or peer socket name on a closed
|
---|
1635 | socket. Did you forget to check the return value of your socket() call?
|
---|
1636 |
|
---|
1637 | =item getpwnam returned invalid UIC %#o for user "%s"
|
---|
1638 |
|
---|
1639 | (S) A warning peculiar to VMS. The call to C<sys$getuai> underlying the
|
---|
1640 | C<getpwnam> operator returned an invalid UIC.
|
---|
1641 |
|
---|
1642 | =item getsockopt() on closed socket %s
|
---|
1643 |
|
---|
1644 | (W closed) You tried to get a socket option on a closed socket. Did you
|
---|
1645 | forget to check the return value of your socket() call? See
|
---|
1646 | L<perlfunc/getsockopt>.
|
---|
1647 |
|
---|
1648 | =item Global symbol "%s" requires explicit package name
|
---|
1649 |
|
---|
1650 | (F) You've said "use strict vars", which indicates that all variables
|
---|
1651 | must either be lexically scoped (using "my"), declared beforehand using
|
---|
1652 | "our", or explicitly qualified to say which package the global variable
|
---|
1653 | is in (using "::").
|
---|
1654 |
|
---|
1655 | =item glob failed (%s)
|
---|
1656 |
|
---|
1657 | (W glob) Something went wrong with the external program(s) used for
|
---|
1658 | C<glob> and C<< <*.c> >>. Usually, this means that you supplied a
|
---|
1659 | C<glob> pattern that caused the external program to fail and exit with a
|
---|
1660 | nonzero status. If the message indicates that the abnormal exit
|
---|
1661 | resulted in a coredump, this may also mean that your csh (C shell) is
|
---|
1662 | broken. If so, you should change all of the csh-related variables in
|
---|
1663 | config.sh: If you have tcsh, make the variables refer to it as if it
|
---|
1664 | were csh (e.g. C<full_csh='/usr/bin/tcsh'>); otherwise, make them all
|
---|
1665 | empty (except that C<d_csh> should be C<'undef'>) so that Perl will
|
---|
1666 | think csh is missing. In either case, after editing config.sh, run
|
---|
1667 | C<./Configure -S> and rebuild Perl.
|
---|
1668 |
|
---|
1669 | =item Glob not terminated
|
---|
1670 |
|
---|
1671 | (F) The lexer saw a left angle bracket in a place where it was expecting
|
---|
1672 | a term, so it's looking for the corresponding right angle bracket, and
|
---|
1673 | not finding it. Chances are you left some needed parentheses out
|
---|
1674 | earlier in the line, and you really meant a "less than".
|
---|
1675 |
|
---|
1676 | =item Got an error from DosAllocMem
|
---|
1677 |
|
---|
1678 | (P) An error peculiar to OS/2. Most probably you're using an obsolete
|
---|
1679 | version of Perl, and this should not happen anyway.
|
---|
1680 |
|
---|
1681 | =item goto must have label
|
---|
1682 |
|
---|
1683 | (F) Unlike with "next" or "last", you're not allowed to goto an
|
---|
1684 | unspecified destination. See L<perlfunc/goto>.
|
---|
1685 |
|
---|
1686 | =item ()-group starts with a count
|
---|
1687 |
|
---|
1688 | (F) A ()-group started with a count. A count is
|
---|
1689 | supposed to follow something: a template character or a ()-group.
|
---|
1690 | See L<perlfunc/pack>.
|
---|
1691 |
|
---|
1692 | =item %s had compilation errors
|
---|
1693 |
|
---|
1694 | (F) The final summary message when a C<perl -c> fails.
|
---|
1695 |
|
---|
1696 | =item Had to create %s unexpectedly
|
---|
1697 |
|
---|
1698 | (S internal) A routine asked for a symbol from a symbol table that ought
|
---|
1699 | to have existed already, but for some reason it didn't, and had to be
|
---|
1700 | created on an emergency basis to prevent a core dump.
|
---|
1701 |
|
---|
1702 | =item Hash %%s missing the % in argument %d of %s()
|
---|
1703 |
|
---|
1704 | (D deprecated) Really old Perl let you omit the % on hash names in some
|
---|
1705 | spots. This is now heavily deprecated.
|
---|
1706 |
|
---|
1707 | =item %s has too many errors
|
---|
1708 |
|
---|
1709 | (F) The parser has given up trying to parse the program after 10 errors.
|
---|
1710 | Further error messages would likely be uninformative.
|
---|
1711 |
|
---|
1712 | =item Hexadecimal number > 0xffffffff non-portable
|
---|
1713 |
|
---|
1714 | (W portable) The hexadecimal number you specified is larger than 2**32-1
|
---|
1715 | (4294967295) and therefore non-portable between systems. See
|
---|
1716 | L<perlport> for more on portability concerns.
|
---|
1717 |
|
---|
1718 | =item Identifier too long
|
---|
1719 |
|
---|
1720 | (F) Perl limits identifiers (names for variables, functions, etc.) to
|
---|
1721 | about 250 characters for simple names, and somewhat more for compound
|
---|
1722 | names (like C<$A::B>). You've exceeded Perl's limits. Future versions
|
---|
1723 | of Perl are likely to eliminate these arbitrary limitations.
|
---|
1724 |
|
---|
1725 | =item Illegal binary digit %s
|
---|
1726 |
|
---|
1727 | (F) You used a digit other than 0 or 1 in a binary number.
|
---|
1728 |
|
---|
1729 | =item Illegal binary digit %s ignored
|
---|
1730 |
|
---|
1731 | (W digit) You may have tried to use a digit other than 0 or 1 in a
|
---|
1732 | binary number. Interpretation of the binary number stopped before the
|
---|
1733 | offending digit.
|
---|
1734 |
|
---|
1735 | =item Illegal character %s (carriage return)
|
---|
1736 |
|
---|
1737 | (F) Perl normally treats carriage returns in the program text as it
|
---|
1738 | would any other whitespace, which means you should never see this error
|
---|
1739 | when Perl was built using standard options. For some reason, your
|
---|
1740 | version of Perl appears to have been built without this support. Talk
|
---|
1741 | to your Perl administrator.
|
---|
1742 |
|
---|
1743 | =item Illegal character in prototype for %s : %s
|
---|
1744 |
|
---|
1745 | (W syntax) An illegal character was found in a prototype declaration. Legal
|
---|
1746 | characters in prototypes are $, @, %, *, ;, [, ], &, and \.
|
---|
1747 |
|
---|
1748 | =item Illegal declaration of anonymous subroutine
|
---|
1749 |
|
---|
1750 | (F) When using the C<sub> keyword to construct an anonymous subroutine,
|
---|
1751 | you must always specify a block of code. See L<perlsub>.
|
---|
1752 |
|
---|
1753 | =item Illegal declaration of subroutine %s
|
---|
1754 |
|
---|
1755 | (F) A subroutine was not declared correctly. See L<perlsub>.
|
---|
1756 |
|
---|
1757 | =item Illegal division by zero
|
---|
1758 |
|
---|
1759 | (F) You tried to divide a number by 0. Either something was wrong in
|
---|
1760 | your logic, or you need to put a conditional in to guard against
|
---|
1761 | meaningless input.
|
---|
1762 |
|
---|
1763 | =item Illegal hexadecimal digit %s ignored
|
---|
1764 |
|
---|
1765 | (W digit) You may have tried to use a character other than 0 - 9 or
|
---|
1766 | A - F, a - f in a hexadecimal number. Interpretation of the hexadecimal
|
---|
1767 | number stopped before the illegal character.
|
---|
1768 |
|
---|
1769 | =item Illegal modulus zero
|
---|
1770 |
|
---|
1771 | (F) You tried to divide a number by 0 to get the remainder. Most
|
---|
1772 | numbers don't take to this kindly.
|
---|
1773 |
|
---|
1774 | =item Illegal number of bits in vec
|
---|
1775 |
|
---|
1776 | (F) The number of bits in vec() (the third argument) must be a power of
|
---|
1777 | two from 1 to 32 (or 64, if your platform supports that).
|
---|
1778 |
|
---|
1779 | =item Illegal octal digit %s
|
---|
1780 |
|
---|
1781 | (F) You used an 8 or 9 in an octal number.
|
---|
1782 |
|
---|
1783 | =item Illegal octal digit %s ignored
|
---|
1784 |
|
---|
1785 | (W digit) You may have tried to use an 8 or 9 in an octal number.
|
---|
1786 | Interpretation of the octal number stopped before the 8 or 9.
|
---|
1787 |
|
---|
1788 | =item Illegal switch in PERL5OPT: %s
|
---|
1789 |
|
---|
1790 | (X) The PERL5OPT environment variable may only be used to set the
|
---|
1791 | following switches: B<-[DIMUdmtw]>.
|
---|
1792 |
|
---|
1793 | =item Ill-formed CRTL environ value "%s"
|
---|
1794 |
|
---|
1795 | (W internal) A warning peculiar to VMS. Perl tried to read the CRTL's
|
---|
1796 | internal environ array, and encountered an element without the C<=>
|
---|
1797 | delimiter used to separate keys from values. The element is ignored.
|
---|
1798 |
|
---|
1799 | =item Ill-formed message in prime_env_iter: |%s|
|
---|
1800 |
|
---|
1801 | (W internal) A warning peculiar to VMS. Perl tried to read a logical
|
---|
1802 | name or CLI symbol definition when preparing to iterate over %ENV, and
|
---|
1803 | didn't see the expected delimiter between key and value, so the line was
|
---|
1804 | ignored.
|
---|
1805 |
|
---|
1806 | =item (in cleanup) %s
|
---|
1807 |
|
---|
1808 | (W misc) This prefix usually indicates that a DESTROY() method raised
|
---|
1809 | the indicated exception. Since destructors are usually called by the
|
---|
1810 | system at arbitrary points during execution, and often a vast number of
|
---|
1811 | times, the warning is issued only once for any number of failures that
|
---|
1812 | would otherwise result in the same message being repeated.
|
---|
1813 |
|
---|
1814 | Failure of user callbacks dispatched using the C<G_KEEPERR> flag could
|
---|
1815 | also result in this warning. See L<perlcall/G_KEEPERR>.
|
---|
1816 |
|
---|
1817 | =item In EBCDIC the v-string components cannot exceed 2147483647
|
---|
1818 |
|
---|
1819 | (F) An error peculiar to EBCDIC. Internally, v-strings are stored as
|
---|
1820 | Unicode code points, and encoded in EBCDIC as UTF-EBCDIC. The UTF-EBCDIC
|
---|
1821 | encoding is limited to code points no larger than 2147483647 (0x7FFFFFFF).
|
---|
1822 |
|
---|
1823 | =item Insecure dependency in %s
|
---|
1824 |
|
---|
1825 | (F) You tried to do something that the tainting mechanism didn't like.
|
---|
1826 | The tainting mechanism is turned on when you're running setuid or
|
---|
1827 | setgid, or when you specify B<-T> to turn it on explicitly. The
|
---|
1828 | tainting mechanism labels all data that's derived directly or indirectly
|
---|
1829 | from the user, who is considered to be unworthy of your trust. If any
|
---|
1830 | such data is used in a "dangerous" operation, you get this error. See
|
---|
1831 | L<perlsec> for more information.
|
---|
1832 |
|
---|
1833 | =item Insecure directory in %s
|
---|
1834 |
|
---|
1835 | (F) You can't use system(), exec(), or a piped open in a setuid or
|
---|
1836 | setgid script if C<$ENV{PATH}> contains a directory that is writable by
|
---|
1837 | the world. Also, the PATH must not contain any relative directory.
|
---|
1838 | See L<perlsec>.
|
---|
1839 |
|
---|
1840 | =item Insecure $ENV{%s} while running %s
|
---|
1841 |
|
---|
1842 | (F) You can't use system(), exec(), or a piped open in a setuid or
|
---|
1843 | setgid script if any of C<$ENV{PATH}>, C<$ENV{IFS}>, C<$ENV{CDPATH}>,
|
---|
1844 | C<$ENV{ENV}>, C<$ENV{BASH_ENV}> or C<$ENV{TERM}> are derived from data
|
---|
1845 | supplied (or potentially supplied) by the user. The script must set
|
---|
1846 | the path to a known value, using trustworthy data. See L<perlsec>.
|
---|
1847 |
|
---|
1848 | =item Integer overflow in %s number
|
---|
1849 |
|
---|
1850 | (W overflow) The hexadecimal, octal or binary number you have specified
|
---|
1851 | either as a literal or as an argument to hex() or oct() is too big for
|
---|
1852 | your architecture, and has been converted to a floating point number.
|
---|
1853 | On a 32-bit architecture the largest hexadecimal, octal or binary number
|
---|
1854 | representable without overflow is 0xFFFFFFFF, 037777777777, or
|
---|
1855 | 0b11111111111111111111111111111111 respectively. Note that Perl
|
---|
1856 | transparently promotes all numbers to a floating point representation
|
---|
1857 | internally--subject to loss of precision errors in subsequent
|
---|
1858 | operations.
|
---|
1859 |
|
---|
1860 | =item Internal disaster in regex; marked by <-- HERE in m/%s/
|
---|
1861 |
|
---|
1862 | (P) Something went badly wrong in the regular expression parser.
|
---|
1863 | The <-- HERE shows in the regular expression about where the problem was
|
---|
1864 | discovered.
|
---|
1865 |
|
---|
1866 | =item Internal inconsistency in tracking vforks
|
---|
1867 |
|
---|
1868 | (S) A warning peculiar to VMS. Perl keeps track of the number of times
|
---|
1869 | you've called C<fork> and C<exec>, to determine whether the current call
|
---|
1870 | to C<exec> should affect the current script or a subprocess (see
|
---|
1871 | L<perlvms/"exec LIST">). Somehow, this count has become scrambled, so
|
---|
1872 | Perl is making a guess and treating this C<exec> as a request to
|
---|
1873 | terminate the Perl script and execute the specified command.
|
---|
1874 |
|
---|
1875 | =item Internal urp in regex; marked by <-- HERE in m/%s/
|
---|
1876 |
|
---|
1877 | (P) Something went badly awry in the regular expression parser. The
|
---|
1878 | <-- HERE shows in the regular expression about where the problem was
|
---|
1879 | discovered.
|
---|
1880 |
|
---|
1881 | =item %s (...) interpreted as function
|
---|
1882 |
|
---|
1883 | (W syntax) You've run afoul of the rule that says that any list operator
|
---|
1884 | followed by parentheses turns into a function, with all the list
|
---|
1885 | operators arguments found inside the parentheses. See
|
---|
1886 | L<perlop/Terms and List Operators (Leftward)>.
|
---|
1887 |
|
---|
1888 | =item Invalid %s attribute: %s
|
---|
1889 |
|
---|
1890 | The indicated attribute for a subroutine or variable was not recognized
|
---|
1891 | by Perl or by a user-supplied handler. See L<attributes>.
|
---|
1892 |
|
---|
1893 | =item Invalid %s attributes: %s
|
---|
1894 |
|
---|
1895 | The indicated attributes for a subroutine or variable were not
|
---|
1896 | recognized by Perl or by a user-supplied handler. See L<attributes>.
|
---|
1897 |
|
---|
1898 | =item Invalid conversion in %s: "%s"
|
---|
1899 |
|
---|
1900 | (W printf) Perl does not understand the given format conversion. See
|
---|
1901 | L<perlfunc/sprintf>.
|
---|
1902 |
|
---|
1903 | =item Invalid [] range "%s" in regex; marked by <-- HERE in m/%s/
|
---|
1904 |
|
---|
1905 | (F) The range specified in a character class had a minimum character
|
---|
1906 | greater than the maximum character. One possibility is that you forgot the
|
---|
1907 | C<{}> from your ending C<\x{}> - C<\x> without the curly braces can go only
|
---|
1908 | up to C<ff>. The <-- HERE shows in the regular expression about where the
|
---|
1909 | problem was discovered. See L<perlre>.
|
---|
1910 |
|
---|
1911 | =item Invalid range "%s" in transliteration operator
|
---|
1912 |
|
---|
1913 | (F) The range specified in the tr/// or y/// operator had a minimum
|
---|
1914 | character greater than the maximum character. See L<perlop>.
|
---|
1915 |
|
---|
1916 | =item Invalid separator character %s in attribute list
|
---|
1917 |
|
---|
1918 | (F) Something other than a colon or whitespace was seen between the
|
---|
1919 | elements of an attribute list. If the previous attribute had a
|
---|
1920 | parenthesised parameter list, perhaps that list was terminated too soon.
|
---|
1921 | See L<attributes>.
|
---|
1922 |
|
---|
1923 | =item Invalid separator character %s in PerlIO layer specification %s
|
---|
1924 |
|
---|
1925 | (W layer) When pushing layers onto the Perl I/O system, something other than a
|
---|
1926 | colon or whitespace was seen between the elements of a layer list.
|
---|
1927 | If the previous attribute had a parenthesised parameter list, perhaps that
|
---|
1928 | list was terminated too soon.
|
---|
1929 |
|
---|
1930 | =item Invalid type '%s' in %s
|
---|
1931 |
|
---|
1932 | (F) The given character is not a valid pack or unpack type.
|
---|
1933 | See L<perlfunc/pack>.
|
---|
1934 | (W) The given character is not a valid pack or unpack type but used to be
|
---|
1935 | silently ignored.
|
---|
1936 |
|
---|
1937 | =item ioctl is not implemented
|
---|
1938 |
|
---|
1939 | (F) Your machine apparently doesn't implement ioctl(), which is pretty
|
---|
1940 | strange for a machine that supports C.
|
---|
1941 |
|
---|
1942 | =item ioctl() on unopened %s
|
---|
1943 |
|
---|
1944 | (W unopened) You tried ioctl() on a filehandle that was never opened.
|
---|
1945 | Check you control flow and number of arguments.
|
---|
1946 |
|
---|
1947 | =item IO layers (like "%s") unavailable
|
---|
1948 |
|
---|
1949 | (F) Your Perl has not been configured to have PerlIO, and therefore
|
---|
1950 | you cannot use IO layers. To have PerlIO Perl must be configured
|
---|
1951 | with 'useperlio'.
|
---|
1952 |
|
---|
1953 | =item IO::Socket::atmark not implemented on this architecture
|
---|
1954 |
|
---|
1955 | (F) Your machine doesn't implement the sockatmark() functionality,
|
---|
1956 | neither as a system call or an ioctl call (SIOCATMARK).
|
---|
1957 |
|
---|
1958 | =item `%s' is not a code reference
|
---|
1959 |
|
---|
1960 | (W overload) The second (fourth, sixth, ...) argument of overload::constant
|
---|
1961 | needs to be a code reference. Either an anonymous subroutine, or a reference
|
---|
1962 | to a subroutine.
|
---|
1963 |
|
---|
1964 | =item `%s' is not an overloadable type
|
---|
1965 |
|
---|
1966 | (W overload) You tried to overload a constant type the overload package is
|
---|
1967 | unaware of.
|
---|
1968 |
|
---|
1969 | =item junk on end of regexp
|
---|
1970 |
|
---|
1971 | (P) The regular expression parser is confused.
|
---|
1972 |
|
---|
1973 | =item Label not found for "last %s"
|
---|
1974 |
|
---|
1975 | (F) You named a loop to break out of, but you're not currently in a loop
|
---|
1976 | of that name, not even if you count where you were called from. See
|
---|
1977 | L<perlfunc/last>.
|
---|
1978 |
|
---|
1979 | =item Label not found for "next %s"
|
---|
1980 |
|
---|
1981 | (F) You named a loop to continue, but you're not currently in a loop of
|
---|
1982 | that name, not even if you count where you were called from. See
|
---|
1983 | L<perlfunc/last>.
|
---|
1984 |
|
---|
1985 | =item Label not found for "redo %s"
|
---|
1986 |
|
---|
1987 | (F) You named a loop to restart, but you're not currently in a loop of
|
---|
1988 | that name, not even if you count where you were called from. See
|
---|
1989 | L<perlfunc/last>.
|
---|
1990 |
|
---|
1991 | =item leaving effective %s failed
|
---|
1992 |
|
---|
1993 | (F) While under the C<use filetest> pragma, switching the real and
|
---|
1994 | effective uids or gids failed.
|
---|
1995 |
|
---|
1996 | =item length/code after end of string in unpack
|
---|
1997 |
|
---|
1998 | (F) While unpacking, the string buffer was already used up when an unpack
|
---|
1999 | length/code combination tried to obtain more data. This results in
|
---|
2000 | an undefined value for the length. See L<perlfunc/pack>.
|
---|
2001 |
|
---|
2002 | =item listen() on closed socket %s
|
---|
2003 |
|
---|
2004 | (W closed) You tried to do a listen on a closed socket. Did you forget
|
---|
2005 | to check the return value of your socket() call? See
|
---|
2006 | L<perlfunc/listen>.
|
---|
2007 |
|
---|
2008 | =item Lookbehind longer than %d not implemented in regex; marked by <-- HERE in m/%s/
|
---|
2009 |
|
---|
2010 | (F) There is currently a limit on the length of string which lookbehind can
|
---|
2011 | handle. This restriction may be eased in a future release. The <-- HERE
|
---|
2012 | shows in the regular expression about where the problem was discovered.
|
---|
2013 |
|
---|
2014 | =item lstat() on filehandle %s
|
---|
2015 |
|
---|
2016 | (W io) You tried to do an lstat on a filehandle. What did you mean
|
---|
2017 | by that? lstat() makes sense only on filenames. (Perl did a fstat()
|
---|
2018 | instead on the filehandle.)
|
---|
2019 |
|
---|
2020 | =item Lvalue subs returning %s not implemented yet
|
---|
2021 |
|
---|
2022 | (F) Due to limitations in the current implementation, array and hash
|
---|
2023 | values cannot be returned in subroutines used in lvalue context. See
|
---|
2024 | L<perlsub/"Lvalue subroutines">.
|
---|
2025 |
|
---|
2026 | =item Malformed integer in [] in pack
|
---|
2027 |
|
---|
2028 | (F) Between the brackets enclosing a numeric repeat count only digits
|
---|
2029 | are permitted. See L<perlfunc/pack>.
|
---|
2030 |
|
---|
2031 | =item Malformed integer in [] in unpack
|
---|
2032 |
|
---|
2033 | (F) Between the brackets enclosing a numeric repeat count only digits
|
---|
2034 | are permitted. See L<perlfunc/pack>.
|
---|
2035 |
|
---|
2036 | =item Malformed PERLLIB_PREFIX
|
---|
2037 |
|
---|
2038 | (F) An error peculiar to OS/2. PERLLIB_PREFIX should be of the form
|
---|
2039 |
|
---|
2040 | prefix1;prefix2
|
---|
2041 |
|
---|
2042 | or
|
---|
2043 | prefix1 prefix2
|
---|
2044 |
|
---|
2045 | with nonempty prefix1 and prefix2. If C<prefix1> is indeed a prefix of
|
---|
2046 | a builtin library search path, prefix2 is substituted. The error may
|
---|
2047 | appear if components are not found, or are too long. See
|
---|
2048 | "PERLLIB_PREFIX" in L<perlos2>.
|
---|
2049 |
|
---|
2050 | =item Malformed prototype for %s: %s
|
---|
2051 |
|
---|
2052 | (F) You tried to use a function with a malformed prototype. The
|
---|
2053 | syntax of function prototypes is given a brief compile-time check for
|
---|
2054 | obvious errors like invalid characters. A more rigorous check is run
|
---|
2055 | when the function is called.
|
---|
2056 |
|
---|
2057 | =item Malformed UTF-8 character (%s)
|
---|
2058 |
|
---|
2059 | (S utf8) (F) Perl detected something that didn't comply with UTF-8
|
---|
2060 | encoding rules.
|
---|
2061 |
|
---|
2062 | One possible cause is that you read in data that you thought to be in
|
---|
2063 | UTF-8 but it wasn't (it was for example legacy 8-bit data). Another
|
---|
2064 | possibility is careless use of utf8::upgrade().
|
---|
2065 |
|
---|
2066 | =item Malformed UTF-16 surrogate
|
---|
2067 |
|
---|
2068 | Perl thought it was reading UTF-16 encoded character data but while
|
---|
2069 | doing it Perl met a malformed Unicode surrogate.
|
---|
2070 |
|
---|
2071 | =item %s matches null string many times in regex; marked by <-- HERE in m/%s/
|
---|
2072 |
|
---|
2073 | (W regexp) The pattern you've specified would be an infinite loop if the
|
---|
2074 | regular expression engine didn't specifically check for that. The <-- HERE
|
---|
2075 | shows in the regular expression about where the problem was discovered.
|
---|
2076 | See L<perlre>.
|
---|
2077 |
|
---|
2078 | =item "%s" may clash with future reserved word
|
---|
2079 |
|
---|
2080 | (W) This warning may be due to running a perl5 script through a perl4
|
---|
2081 | interpreter, especially if the word that is being warned about is
|
---|
2082 | "use" or "my".
|
---|
2083 |
|
---|
2084 | =item % may not be used in pack
|
---|
2085 |
|
---|
2086 | (F) You can't pack a string by supplying a checksum, because the
|
---|
2087 | checksumming process loses information, and you can't go the other way.
|
---|
2088 | See L<perlfunc/unpack>.
|
---|
2089 |
|
---|
2090 | =item Method for operation %s not found in package %s during blessing
|
---|
2091 |
|
---|
2092 | (F) An attempt was made to specify an entry in an overloading table that
|
---|
2093 | doesn't resolve to a valid subroutine. See L<overload>.
|
---|
2094 |
|
---|
2095 | =item Method %s not permitted
|
---|
2096 |
|
---|
2097 | See Server error.
|
---|
2098 |
|
---|
2099 | =item Might be a runaway multi-line %s string starting on line %d
|
---|
2100 |
|
---|
2101 | (S) An advisory indicating that the previous error may have been caused
|
---|
2102 | by a missing delimiter on a string or pattern, because it eventually
|
---|
2103 | ended earlier on the current line.
|
---|
2104 |
|
---|
2105 | =item Misplaced _ in number
|
---|
2106 |
|
---|
2107 | (W syntax) An underscore (underbar) in a numeric constant did not
|
---|
2108 | separate two digits.
|
---|
2109 |
|
---|
2110 | =item Missing argument to -%c
|
---|
2111 |
|
---|
2112 | (F) The argument to the indicated command line switch must follow
|
---|
2113 | immediately after the switch, without intervening spaces.
|
---|
2114 |
|
---|
2115 | =item Missing %sbrace%s on \N{}
|
---|
2116 |
|
---|
2117 | (F) Wrong syntax of character name literal C<\N{charname}> within
|
---|
2118 | double-quotish context.
|
---|
2119 |
|
---|
2120 | =item Missing comma after first argument to %s function
|
---|
2121 |
|
---|
2122 | (F) While certain functions allow you to specify a filehandle or an
|
---|
2123 | "indirect object" before the argument list, this ain't one of them.
|
---|
2124 |
|
---|
2125 | =item Missing command in piped open
|
---|
2126 |
|
---|
2127 | (W pipe) You used the C<open(FH, "| command")> or
|
---|
2128 | C<open(FH, "command |")> construction, but the command was missing or
|
---|
2129 | blank.
|
---|
2130 |
|
---|
2131 | =item Missing control char name in \c
|
---|
2132 |
|
---|
2133 | (F) A double-quoted string ended with "\c", without the required control
|
---|
2134 | character name.
|
---|
2135 |
|
---|
2136 | =item Missing name in "my sub"
|
---|
2137 |
|
---|
2138 | (F) The reserved syntax for lexically scoped subroutines requires that
|
---|
2139 | they have a name with which they can be found.
|
---|
2140 |
|
---|
2141 | =item Missing $ on loop variable
|
---|
2142 |
|
---|
2143 | (F) Apparently you've been programming in B<csh> too much. Variables
|
---|
2144 | are always mentioned with the $ in Perl, unlike in the shells, where it
|
---|
2145 | can vary from one line to the next.
|
---|
2146 |
|
---|
2147 | =item (Missing operator before %s?)
|
---|
2148 |
|
---|
2149 | (S syntax) This is an educated guess made in conjunction with the message
|
---|
2150 | "%s found where operator expected". Often the missing operator is a comma.
|
---|
2151 |
|
---|
2152 | =item Missing right brace on %s
|
---|
2153 |
|
---|
2154 | (F) Missing right brace in C<\p{...}> or C<\P{...}>.
|
---|
2155 |
|
---|
2156 | =item Missing right curly or square bracket
|
---|
2157 |
|
---|
2158 | (F) The lexer counted more opening curly or square brackets than closing
|
---|
2159 | ones. As a general rule, you'll find it's missing near the place you
|
---|
2160 | were last editing.
|
---|
2161 |
|
---|
2162 | =item (Missing semicolon on previous line?)
|
---|
2163 |
|
---|
2164 | (S syntax) This is an educated guess made in conjunction with the message
|
---|
2165 | "%s found where operator expected". Don't automatically put a semicolon on
|
---|
2166 | the previous line just because you saw this message.
|
---|
2167 |
|
---|
2168 | =item Modification of a read-only value attempted
|
---|
2169 |
|
---|
2170 | (F) You tried, directly or indirectly, to change the value of a
|
---|
2171 | constant. You didn't, of course, try "2 = 1", because the compiler
|
---|
2172 | catches that. But an easy way to do the same thing is:
|
---|
2173 |
|
---|
2174 | sub mod { $_[0] = 1 }
|
---|
2175 | mod(2);
|
---|
2176 |
|
---|
2177 | Another way is to assign to a substr() that's off the end of the string.
|
---|
2178 |
|
---|
2179 | Yet another way is to assign to a C<foreach> loop I<VAR> when I<VAR>
|
---|
2180 | is aliased to a constant in the look I<LIST>:
|
---|
2181 |
|
---|
2182 | $x = 1;
|
---|
2183 | foreach my $n ($x, 2) {
|
---|
2184 | $n *= 2; # modifies the $x, but fails on attempt to modify the 2
|
---|
2185 | }
|
---|
2186 |
|
---|
2187 | =item Modification of non-creatable array value attempted, %s
|
---|
2188 |
|
---|
2189 | (F) You tried to make an array value spring into existence, and the
|
---|
2190 | subscript was probably negative, even counting from end of the array
|
---|
2191 | backwards.
|
---|
2192 |
|
---|
2193 | =item Modification of non-creatable hash value attempted, %s
|
---|
2194 |
|
---|
2195 | (P) You tried to make a hash value spring into existence, and it
|
---|
2196 | couldn't be created for some peculiar reason.
|
---|
2197 |
|
---|
2198 | =item Module name must be constant
|
---|
2199 |
|
---|
2200 | (F) Only a bare module name is allowed as the first argument to a "use".
|
---|
2201 |
|
---|
2202 | =item Module name required with -%c option
|
---|
2203 |
|
---|
2204 | (F) The C<-M> or C<-m> options say that Perl should load some module, but
|
---|
2205 | you omitted the name of the module. Consult L<perlrun> for full details
|
---|
2206 | about C<-M> and C<-m>.
|
---|
2207 |
|
---|
2208 | =item More than one argument to open
|
---|
2209 |
|
---|
2210 | (F) The C<open> function has been asked to open multiple files. This
|
---|
2211 | can happen if you are trying to open a pipe to a command that takes a
|
---|
2212 | list of arguments, but have forgotten to specify a piped open mode.
|
---|
2213 | See L<perlfunc/open> for details.
|
---|
2214 |
|
---|
2215 | =item msg%s not implemented
|
---|
2216 |
|
---|
2217 | (F) You don't have System V message IPC on your system.
|
---|
2218 |
|
---|
2219 | =item Multidimensional syntax %s not supported
|
---|
2220 |
|
---|
2221 | (W syntax) Multidimensional arrays aren't written like C<$foo[1,2,3]>.
|
---|
2222 | They're written like C<$foo[1][2][3]>, as in C.
|
---|
2223 |
|
---|
2224 | =item '/' must be followed by 'a*', 'A*' or 'Z*'
|
---|
2225 |
|
---|
2226 | (F) You had a pack template indicating a counted-length string,
|
---|
2227 | Currently the only things that can have their length counted are a*, A*
|
---|
2228 | or Z*. See L<perlfunc/pack>.
|
---|
2229 |
|
---|
2230 | =item '/' must follow a numeric type in unpack
|
---|
2231 |
|
---|
2232 | (F) You had an unpack template that contained a '/', but this did not
|
---|
2233 | follow some unpack specification producing a numeric value.
|
---|
2234 | See L<perlfunc/pack>.
|
---|
2235 |
|
---|
2236 | =item "my sub" not yet implemented
|
---|
2237 |
|
---|
2238 | (F) Lexically scoped subroutines are not yet implemented. Don't try
|
---|
2239 | that yet.
|
---|
2240 |
|
---|
2241 | =item "my" variable %s can't be in a package
|
---|
2242 |
|
---|
2243 | (F) Lexically scoped variables aren't in a package, so it doesn't make
|
---|
2244 | sense to try to declare one with a package qualifier on the front. Use
|
---|
2245 | local() if you want to localize a package variable.
|
---|
2246 |
|
---|
2247 | =item Name "%s::%s" used only once: possible typo
|
---|
2248 |
|
---|
2249 | (W once) Typographical errors often show up as unique variable names.
|
---|
2250 | If you had a good reason for having a unique name, then just mention it
|
---|
2251 | again somehow to suppress the message. The C<our> declaration is
|
---|
2252 | provided for this purpose.
|
---|
2253 |
|
---|
2254 | NOTE: This warning detects symbols that have been used only once so $c, @c,
|
---|
2255 | %c, *c, &c, sub c{}, c(), and c (the filehandle or format) are considered
|
---|
2256 | the same; if a program uses $c only once but also uses any of the others it
|
---|
2257 | will not trigger this warning.
|
---|
2258 |
|
---|
2259 | =item Negative '/' count in unpack
|
---|
2260 |
|
---|
2261 | (F) The length count obtained from a length/code unpack operation was
|
---|
2262 | negative. See L<perlfunc/pack>.
|
---|
2263 |
|
---|
2264 | =item Negative length
|
---|
2265 |
|
---|
2266 | (F) You tried to do a read/write/send/recv operation with a buffer
|
---|
2267 | length that is less than 0. This is difficult to imagine.
|
---|
2268 |
|
---|
2269 | =item Negative offset to vec in lvalue context
|
---|
2270 |
|
---|
2271 | (F) When C<vec> is called in an lvalue context, the second argument must be
|
---|
2272 | greater than or equal to zero.
|
---|
2273 |
|
---|
2274 | =item Nested quantifiers in regex; marked by <-- HERE in m/%s/
|
---|
2275 |
|
---|
2276 | (F) You can't quantify a quantifier without intervening parentheses. So
|
---|
2277 | things like ** or +* or ?* are illegal. The <-- HERE shows in the regular
|
---|
2278 | expression about where the problem was discovered.
|
---|
2279 |
|
---|
2280 | Note that the minimal matching quantifiers, C<*?>, C<+?>, and
|
---|
2281 | C<??> appear to be nested quantifiers, but aren't. See L<perlre>.
|
---|
2282 |
|
---|
2283 | =item %s never introduced
|
---|
2284 |
|
---|
2285 | (S internal) The symbol in question was declared but somehow went out of
|
---|
2286 | scope before it could possibly have been used.
|
---|
2287 |
|
---|
2288 | =item Newline in left-justified string for %s
|
---|
2289 |
|
---|
2290 | (W printf) There is a newline in a string to be left justified by
|
---|
2291 | C<printf> or C<sprintf>.
|
---|
2292 |
|
---|
2293 | The padding spaces will appear after the newline, which is probably not
|
---|
2294 | what you wanted. Usually you should remove the newline from the string
|
---|
2295 | and put formatting characters in the C<sprintf> format.
|
---|
2296 |
|
---|
2297 | =item No %s allowed while running setuid
|
---|
2298 |
|
---|
2299 | (F) Certain operations are deemed to be too insecure for a setuid or
|
---|
2300 | setgid script to even be allowed to attempt. Generally speaking there
|
---|
2301 | will be another way to do what you want that is, if not secure, at least
|
---|
2302 | securable. See L<perlsec>.
|
---|
2303 |
|
---|
2304 | =item No comma allowed after %s
|
---|
2305 |
|
---|
2306 | (F) A list operator that has a filehandle or "indirect object" is not
|
---|
2307 | allowed to have a comma between that and the following arguments.
|
---|
2308 | Otherwise it'd be just another one of the arguments.
|
---|
2309 |
|
---|
2310 | One possible cause for this is that you expected to have imported a
|
---|
2311 | constant to your name space with B<use> or B<import> while no such
|
---|
2312 | importing took place, it may for example be that your operating system
|
---|
2313 | does not support that particular constant. Hopefully you did use an
|
---|
2314 | explicit import list for the constants you expect to see, please see
|
---|
2315 | L<perlfunc/use> and L<perlfunc/import>. While an explicit import list
|
---|
2316 | would probably have caught this error earlier it naturally does not
|
---|
2317 | remedy the fact that your operating system still does not support that
|
---|
2318 | constant. Maybe you have a typo in the constants of the symbol import
|
---|
2319 | list of B<use> or B<import> or in the constant name at the line where
|
---|
2320 | this error was triggered?
|
---|
2321 |
|
---|
2322 | =item No command into which to pipe on command line
|
---|
2323 |
|
---|
2324 | (F) An error peculiar to VMS. Perl handles its own command line
|
---|
2325 | redirection, and found a '|' at the end of the command line, so it
|
---|
2326 | doesn't know where you want to pipe the output from this command.
|
---|
2327 |
|
---|
2328 | =item No DB::DB routine defined
|
---|
2329 |
|
---|
2330 | (F) The currently executing code was compiled with the B<-d> switch, but
|
---|
2331 | for some reason the current debugger (e.g. F<perl5db.pl> or a C<Devel::>
|
---|
2332 | module) didn't define a routine to be called at the beginning of each
|
---|
2333 | statement.
|
---|
2334 |
|
---|
2335 | =item No dbm on this machine
|
---|
2336 |
|
---|
2337 | (P) This is counted as an internal error, because every machine should
|
---|
2338 | supply dbm nowadays, because Perl comes with SDBM. See L<SDBM_File>.
|
---|
2339 |
|
---|
2340 | =item No DB::sub routine defined
|
---|
2341 |
|
---|
2342 | (F) The currently executing code was compiled with the B<-d> switch, but
|
---|
2343 | for some reason the current debugger (e.g. F<perl5db.pl> or a C<Devel::>
|
---|
2344 | module) didn't define a C<DB::sub> routine to be called at the beginning
|
---|
2345 | of each ordinary subroutine call.
|
---|
2346 |
|
---|
2347 | =item No B<-e> allowed in setuid scripts
|
---|
2348 |
|
---|
2349 | (F) A setuid script can't be specified by the user.
|
---|
2350 |
|
---|
2351 | =item No error file after 2> or 2>> on command line
|
---|
2352 |
|
---|
2353 | (F) An error peculiar to VMS. Perl handles its own command line
|
---|
2354 | redirection, and found a '2>' or a '2>>' on the command line, but can't
|
---|
2355 | find the name of the file to which to write data destined for stderr.
|
---|
2356 |
|
---|
2357 | =item No group ending character '%c' found in template
|
---|
2358 |
|
---|
2359 | (F) A pack or unpack template has an opening '(' or '[' without its
|
---|
2360 | matching counterpart. See L<perlfunc/pack>.
|
---|
2361 |
|
---|
2362 | =item No input file after < on command line
|
---|
2363 |
|
---|
2364 | (F) An error peculiar to VMS. Perl handles its own command line
|
---|
2365 | redirection, and found a '<' on the command line, but can't find the
|
---|
2366 | name of the file from which to read data for stdin.
|
---|
2367 |
|
---|
2368 | =item No #! line
|
---|
2369 |
|
---|
2370 | (F) The setuid emulator requires that scripts have a well-formed #! line
|
---|
2371 | even on machines that don't support the #! construct.
|
---|
2372 |
|
---|
2373 | =item "no" not allowed in expression
|
---|
2374 |
|
---|
2375 | (F) The "no" keyword is recognized and executed at compile time, and
|
---|
2376 | returns no useful value. See L<perlmod>.
|
---|
2377 |
|
---|
2378 | =item No output file after > on command line
|
---|
2379 |
|
---|
2380 | (F) An error peculiar to VMS. Perl handles its own command line
|
---|
2381 | redirection, and found a lone '>' at the end of the command line, so it
|
---|
2382 | doesn't know where you wanted to redirect stdout.
|
---|
2383 |
|
---|
2384 | =item No output file after > or >> on command line
|
---|
2385 |
|
---|
2386 | (F) An error peculiar to VMS. Perl handles its own command line
|
---|
2387 | redirection, and found a '>' or a '>>' on the command line, but can't
|
---|
2388 | find the name of the file to which to write data destined for stdout.
|
---|
2389 |
|
---|
2390 | =item No package name allowed for variable %s in "our"
|
---|
2391 |
|
---|
2392 | (F) Fully qualified variable names are not allowed in "our"
|
---|
2393 | declarations, because that doesn't make much sense under existing
|
---|
2394 | semantics. Such syntax is reserved for future extensions.
|
---|
2395 |
|
---|
2396 | =item No Perl script found in input
|
---|
2397 |
|
---|
2398 | (F) You called C<perl -x>, but no line was found in the file beginning
|
---|
2399 | with #! and containing the word "perl".
|
---|
2400 |
|
---|
2401 | =item No setregid available
|
---|
2402 |
|
---|
2403 | (F) Configure didn't find anything resembling the setregid() call for
|
---|
2404 | your system.
|
---|
2405 |
|
---|
2406 | =item No setreuid available
|
---|
2407 |
|
---|
2408 | (F) Configure didn't find anything resembling the setreuid() call for
|
---|
2409 | your system.
|
---|
2410 |
|
---|
2411 | =item No %s specified for -%c
|
---|
2412 |
|
---|
2413 | (F) The indicated command line switch needs a mandatory argument, but
|
---|
2414 | you haven't specified one.
|
---|
2415 |
|
---|
2416 | =item No such class %s
|
---|
2417 |
|
---|
2418 | (F) You provided a class qualifier in a "my" or "our" declaration, but
|
---|
2419 | this class doesn't exist at this point in your program.
|
---|
2420 |
|
---|
2421 | =item No such pipe open
|
---|
2422 |
|
---|
2423 | (P) An error peculiar to VMS. The internal routine my_pclose() tried to
|
---|
2424 | close a pipe which hadn't been opened. This should have been caught
|
---|
2425 | earlier as an attempt to close an unopened filehandle.
|
---|
2426 |
|
---|
2427 | =item No such pseudo-hash field "%s"
|
---|
2428 |
|
---|
2429 | (F) You tried to access an array as a hash, but the field name used is
|
---|
2430 | not defined. The hash at index 0 should map all valid field names to
|
---|
2431 | array indices for that to work.
|
---|
2432 |
|
---|
2433 | =item No such pseudo-hash field "%s" in variable %s of type %s
|
---|
2434 |
|
---|
2435 | (F) You tried to access a field of a typed variable where the type does
|
---|
2436 | not know about the field name. The field names are looked up in the
|
---|
2437 | %FIELDS hash in the type package at compile time. The %FIELDS hash is
|
---|
2438 | %usually set up with the 'fields' pragma.
|
---|
2439 |
|
---|
2440 | =item No such signal: SIG%s
|
---|
2441 |
|
---|
2442 | (W signal) You specified a signal name as a subscript to %SIG that was
|
---|
2443 | not recognized. Say C<kill -l> in your shell to see the valid signal
|
---|
2444 | names on your system.
|
---|
2445 |
|
---|
2446 | =item Not a CODE reference
|
---|
2447 |
|
---|
2448 | (F) Perl was trying to evaluate a reference to a code value (that is, a
|
---|
2449 | subroutine), but found a reference to something else instead. You can
|
---|
2450 | use the ref() function to find out what kind of ref it really was. See
|
---|
2451 | also L<perlref>.
|
---|
2452 |
|
---|
2453 | =item Not a format reference
|
---|
2454 |
|
---|
2455 | (F) I'm not sure how you managed to generate a reference to an anonymous
|
---|
2456 | format, but this indicates you did, and that it didn't exist.
|
---|
2457 |
|
---|
2458 | =item Not a GLOB reference
|
---|
2459 |
|
---|
2460 | (F) Perl was trying to evaluate a reference to a "typeglob" (that is, a
|
---|
2461 | symbol table entry that looks like C<*foo>), but found a reference to
|
---|
2462 | something else instead. You can use the ref() function to find out what
|
---|
2463 | kind of ref it really was. See L<perlref>.
|
---|
2464 |
|
---|
2465 | =item Not a HASH reference
|
---|
2466 |
|
---|
2467 | (F) Perl was trying to evaluate a reference to a hash value, but found a
|
---|
2468 | reference to something else instead. You can use the ref() function to
|
---|
2469 | find out what kind of ref it really was. See L<perlref>.
|
---|
2470 |
|
---|
2471 | =item Not an ARRAY reference
|
---|
2472 |
|
---|
2473 | (F) Perl was trying to evaluate a reference to an array value, but found
|
---|
2474 | a reference to something else instead. You can use the ref() function
|
---|
2475 | to find out what kind of ref it really was. See L<perlref>.
|
---|
2476 |
|
---|
2477 | =item Not a perl script
|
---|
2478 |
|
---|
2479 | (F) The setuid emulator requires that scripts have a well-formed #! line
|
---|
2480 | even on machines that don't support the #! construct. The line must
|
---|
2481 | mention perl.
|
---|
2482 |
|
---|
2483 | =item Not a SCALAR reference
|
---|
2484 |
|
---|
2485 | (F) Perl was trying to evaluate a reference to a scalar value, but found
|
---|
2486 | a reference to something else instead. You can use the ref() function
|
---|
2487 | to find out what kind of ref it really was. See L<perlref>.
|
---|
2488 |
|
---|
2489 | =item Not a subroutine reference
|
---|
2490 |
|
---|
2491 | (F) Perl was trying to evaluate a reference to a code value (that is, a
|
---|
2492 | subroutine), but found a reference to something else instead. You can
|
---|
2493 | use the ref() function to find out what kind of ref it really was. See
|
---|
2494 | also L<perlref>.
|
---|
2495 |
|
---|
2496 | =item Not a subroutine reference in overload table
|
---|
2497 |
|
---|
2498 | (F) An attempt was made to specify an entry in an overloading table that
|
---|
2499 | doesn't somehow point to a valid subroutine. See L<overload>.
|
---|
2500 |
|
---|
2501 | =item Not enough arguments for %s
|
---|
2502 |
|
---|
2503 | (F) The function requires more arguments than you specified.
|
---|
2504 |
|
---|
2505 | =item Not enough format arguments
|
---|
2506 |
|
---|
2507 | (W syntax) A format specified more picture fields than the next line
|
---|
2508 | supplied. See L<perlform>.
|
---|
2509 |
|
---|
2510 | =item %s: not found
|
---|
2511 |
|
---|
2512 | (A) You've accidentally run your script through the Bourne shell instead
|
---|
2513 | of Perl. Check the #! line, or manually feed your script into Perl
|
---|
2514 | yourself.
|
---|
2515 |
|
---|
2516 | =item no UTC offset information; assuming local time is UTC
|
---|
2517 |
|
---|
2518 | (S) A warning peculiar to VMS. Perl was unable to find the local
|
---|
2519 | timezone offset, so it's assuming that local system time is equivalent
|
---|
2520 | to UTC. If it's not, define the logical name
|
---|
2521 | F<SYS$TIMEZONE_DIFFERENTIAL> to translate to the number of seconds which
|
---|
2522 | need to be added to UTC to get local time.
|
---|
2523 |
|
---|
2524 | =item Non-string passed as bitmask
|
---|
2525 |
|
---|
2526 | (W misc) A number has been passed as a bitmask argument to select().
|
---|
2527 | Use the vec() function to construct the file descriptor bitmasks for
|
---|
2528 | select. See L<perlfunc/select>
|
---|
2529 |
|
---|
2530 | =item Null filename used
|
---|
2531 |
|
---|
2532 | (F) You can't require the null filename, especially because on many
|
---|
2533 | machines that means the current directory! See L<perlfunc/require>.
|
---|
2534 |
|
---|
2535 | =item NULL OP IN RUN
|
---|
2536 |
|
---|
2537 | (P debugging) Some internal routine called run() with a null opcode
|
---|
2538 | pointer.
|
---|
2539 |
|
---|
2540 | =item Null picture in formline
|
---|
2541 |
|
---|
2542 | (F) The first argument to formline must be a valid format picture
|
---|
2543 | specification. It was found to be empty, which probably means you
|
---|
2544 | supplied it an uninitialized value. See L<perlform>.
|
---|
2545 |
|
---|
2546 | =item Null realloc
|
---|
2547 |
|
---|
2548 | (P) An attempt was made to realloc NULL.
|
---|
2549 |
|
---|
2550 | =item NULL regexp argument
|
---|
2551 |
|
---|
2552 | (P) The internal pattern matching routines blew it big time.
|
---|
2553 |
|
---|
2554 | =item NULL regexp parameter
|
---|
2555 |
|
---|
2556 | (P) The internal pattern matching routines are out of their gourd.
|
---|
2557 |
|
---|
2558 | =item Number too long
|
---|
2559 |
|
---|
2560 | (F) Perl limits the representation of decimal numbers in programs to
|
---|
2561 | about 250 characters. You've exceeded that length. Future
|
---|
2562 | versions of Perl are likely to eliminate this arbitrary limitation. In
|
---|
2563 | the meantime, try using scientific notation (e.g. "1e6" instead of
|
---|
2564 | "1_000_000").
|
---|
2565 |
|
---|
2566 | =item Octal number in vector unsupported
|
---|
2567 |
|
---|
2568 | (F) Numbers with a leading C<0> are not currently allowed in vectors.
|
---|
2569 | The octal number interpretation of such numbers may be supported in a
|
---|
2570 | future version.
|
---|
2571 |
|
---|
2572 | =item Octal number > 037777777777 non-portable
|
---|
2573 |
|
---|
2574 | (W portable) The octal number you specified is larger than 2**32-1
|
---|
2575 | (4294967295) and therefore non-portable between systems. See
|
---|
2576 | L<perlport> for more on portability concerns.
|
---|
2577 |
|
---|
2578 | See also L<perlport> for writing portable code.
|
---|
2579 |
|
---|
2580 | =item Odd number of arguments for overload::constant
|
---|
2581 |
|
---|
2582 | (W overload) The call to overload::constant contained an odd number of
|
---|
2583 | arguments. The arguments should come in pairs.
|
---|
2584 |
|
---|
2585 | =item Odd number of elements in anonymous hash
|
---|
2586 |
|
---|
2587 | (W misc) You specified an odd number of elements to initialize a hash,
|
---|
2588 | which is odd, because hashes come in key/value pairs.
|
---|
2589 |
|
---|
2590 | =item Odd number of elements in hash assignment
|
---|
2591 |
|
---|
2592 | (W misc) You specified an odd number of elements to initialize a hash,
|
---|
2593 | which is odd, because hashes come in key/value pairs.
|
---|
2594 |
|
---|
2595 | =item Offset outside string
|
---|
2596 |
|
---|
2597 | (F) You tried to do a read/write/send/recv operation with an offset
|
---|
2598 | pointing outside the buffer. This is difficult to imagine. The sole
|
---|
2599 | exception to this is that C<sysread()>ing past the buffer will extend
|
---|
2600 | the buffer and zero pad the new area.
|
---|
2601 |
|
---|
2602 | =item %s() on unopened %s
|
---|
2603 |
|
---|
2604 | (W unopened) An I/O operation was attempted on a filehandle that was
|
---|
2605 | never initialized. You need to do an open(), a sysopen(), or a socket()
|
---|
2606 | call, or call a constructor from the FileHandle package.
|
---|
2607 |
|
---|
2608 | =item -%s on unopened filehandle %s
|
---|
2609 |
|
---|
2610 | (W unopened) You tried to invoke a file test operator on a filehandle
|
---|
2611 | that isn't open. Check your control flow. See also L<perlfunc/-X>.
|
---|
2612 |
|
---|
2613 | =item oops: oopsAV
|
---|
2614 |
|
---|
2615 | (S internal) An internal warning that the grammar is screwed up.
|
---|
2616 |
|
---|
2617 | =item oops: oopsHV
|
---|
2618 |
|
---|
2619 | (S internal) An internal warning that the grammar is screwed up.
|
---|
2620 |
|
---|
2621 | =item Operation "%s": no method found, %s
|
---|
2622 |
|
---|
2623 | (F) An attempt was made to perform an overloaded operation for which no
|
---|
2624 | handler was defined. While some handlers can be autogenerated in terms
|
---|
2625 | of other handlers, there is no default handler for any operation, unless
|
---|
2626 | C<fallback> overloading key is specified to be true. See L<overload>.
|
---|
2627 |
|
---|
2628 | =item Operator or semicolon missing before %s
|
---|
2629 |
|
---|
2630 | (S ambiguous) You used a variable or subroutine call where the parser
|
---|
2631 | was expecting an operator. The parser has assumed you really meant to
|
---|
2632 | use an operator, but this is highly likely to be incorrect. For
|
---|
2633 | example, if you say "*foo *foo" it will be interpreted as if you said
|
---|
2634 | "*foo * 'foo'".
|
---|
2635 |
|
---|
2636 | =item "our" variable %s redeclared
|
---|
2637 |
|
---|
2638 | (W misc) You seem to have already declared the same global once before
|
---|
2639 | in the current lexical scope.
|
---|
2640 |
|
---|
2641 | =item Out of memory!
|
---|
2642 |
|
---|
2643 | (X) The malloc() function returned 0, indicating there was insufficient
|
---|
2644 | remaining memory (or virtual memory) to satisfy the request. Perl has
|
---|
2645 | no option but to exit immediately.
|
---|
2646 |
|
---|
2647 | At least in Unix you may be able to get past this by increasing your
|
---|
2648 | process datasize limits: in csh/tcsh use C<limit> and
|
---|
2649 | C<limit datasize n> (where C<n> is the number of kilobytes) to check
|
---|
2650 | the current limits and change them, and in ksh/bash/zsh use C<ulimit -a>
|
---|
2651 | and C<ulimit -d n>, respectively.
|
---|
2652 |
|
---|
2653 | =item Out of memory during %s extend
|
---|
2654 |
|
---|
2655 | (X) An attempt was made to extend an array, a list, or a string beyond
|
---|
2656 | the largest possible memory allocation.
|
---|
2657 |
|
---|
2658 | =item Out of memory during "large" request for %s
|
---|
2659 |
|
---|
2660 | (F) The malloc() function returned 0, indicating there was insufficient
|
---|
2661 | remaining memory (or virtual memory) to satisfy the request. However,
|
---|
2662 | the request was judged large enough (compile-time default is 64K), so a
|
---|
2663 | possibility to shut down by trapping this error is granted.
|
---|
2664 |
|
---|
2665 | =item Out of memory during request for %s
|
---|
2666 |
|
---|
2667 | (X|F) The malloc() function returned 0, indicating there was
|
---|
2668 | insufficient remaining memory (or virtual memory) to satisfy the
|
---|
2669 | request.
|
---|
2670 |
|
---|
2671 | The request was judged to be small, so the possibility to trap it
|
---|
2672 | depends on the way perl was compiled. By default it is not trappable.
|
---|
2673 | However, if compiled for this, Perl may use the contents of C<$^M> as an
|
---|
2674 | emergency pool after die()ing with this message. In this case the error
|
---|
2675 | is trappable I<once>, and the error message will include the line and file
|
---|
2676 | where the failed request happened.
|
---|
2677 |
|
---|
2678 | =item Out of memory during ridiculously large request
|
---|
2679 |
|
---|
2680 | (F) You can't allocate more than 2^31+"small amount" bytes. This error
|
---|
2681 | is most likely to be caused by a typo in the Perl program. e.g.,
|
---|
2682 | C<$arr[time]> instead of C<$arr[$time]>.
|
---|
2683 |
|
---|
2684 | =item Out of memory for yacc stack
|
---|
2685 |
|
---|
2686 | (F) The yacc parser wanted to grow its stack so it could continue
|
---|
2687 | parsing, but realloc() wouldn't give it more memory, virtual or
|
---|
2688 | otherwise.
|
---|
2689 |
|
---|
2690 | =item '@' outside of string in unpack
|
---|
2691 |
|
---|
2692 | (F) You had a template that specified an absolute position outside
|
---|
2693 | the string being unpacked. See L<perlfunc/pack>.
|
---|
2694 |
|
---|
2695 | =item %s package attribute may clash with future reserved word: %s
|
---|
2696 |
|
---|
2697 | (W reserved) A lowercase attribute name was used that had a
|
---|
2698 | package-specific handler. That name might have a meaning to Perl itself
|
---|
2699 | some day, even though it doesn't yet. Perhaps you should use a
|
---|
2700 | mixed-case attribute name, instead. See L<attributes>.
|
---|
2701 |
|
---|
2702 | =item pack/unpack repeat count overflow
|
---|
2703 |
|
---|
2704 | (F) You can't specify a repeat count so large that it overflows your
|
---|
2705 | signed integers. See L<perlfunc/pack>.
|
---|
2706 |
|
---|
2707 | =item page overflow
|
---|
2708 |
|
---|
2709 | (W io) A single call to write() produced more lines than can fit on a
|
---|
2710 | page. See L<perlform>.
|
---|
2711 |
|
---|
2712 | =item panic: %s
|
---|
2713 |
|
---|
2714 | (P) An internal error.
|
---|
2715 |
|
---|
2716 | =item panic: ck_grep
|
---|
2717 |
|
---|
2718 | (P) Failed an internal consistency check trying to compile a grep.
|
---|
2719 |
|
---|
2720 | =item panic: ck_split
|
---|
2721 |
|
---|
2722 | (P) Failed an internal consistency check trying to compile a split.
|
---|
2723 |
|
---|
2724 | =item panic: corrupt saved stack index
|
---|
2725 |
|
---|
2726 | (P) The savestack was requested to restore more localized values than
|
---|
2727 | there are in the savestack.
|
---|
2728 |
|
---|
2729 | =item panic: del_backref
|
---|
2730 |
|
---|
2731 | (P) Failed an internal consistency check while trying to reset a weak
|
---|
2732 | reference.
|
---|
2733 |
|
---|
2734 | =item panic: Devel::DProf inconsistent subroutine return
|
---|
2735 |
|
---|
2736 | (P) Devel::DProf called a subroutine that exited using goto(LABEL),
|
---|
2737 | last(LABEL) or next(LABEL). Leaving that way a subroutine called from
|
---|
2738 | an XSUB will lead very probably to a crash of the interpreter. This is
|
---|
2739 | a bug that will hopefully one day get fixed.
|
---|
2740 |
|
---|
2741 | =item panic: die %s
|
---|
2742 |
|
---|
2743 | (P) We popped the context stack to an eval context, and then discovered
|
---|
2744 | it wasn't an eval context.
|
---|
2745 |
|
---|
2746 | =item panic: do_subst
|
---|
2747 |
|
---|
2748 | (P) The internal pp_subst() routine was called with invalid operational
|
---|
2749 | data.
|
---|
2750 |
|
---|
2751 | =item panic: do_trans_%s
|
---|
2752 |
|
---|
2753 | (P) The internal do_trans routines were called with invalid operational
|
---|
2754 | data.
|
---|
2755 |
|
---|
2756 | =item panic: frexp
|
---|
2757 |
|
---|
2758 | (P) The library function frexp() failed, making printf("%f") impossible.
|
---|
2759 |
|
---|
2760 | =item panic: goto
|
---|
2761 |
|
---|
2762 | (P) We popped the context stack to a context with the specified label,
|
---|
2763 | and then discovered it wasn't a context we know how to do a goto in.
|
---|
2764 |
|
---|
2765 | =item panic: INTERPCASEMOD
|
---|
2766 |
|
---|
2767 | (P) The lexer got into a bad state at a case modifier.
|
---|
2768 |
|
---|
2769 | =item panic: INTERPCONCAT
|
---|
2770 |
|
---|
2771 | (P) The lexer got into a bad state parsing a string with brackets.
|
---|
2772 |
|
---|
2773 | =item panic: kid popen errno read
|
---|
2774 |
|
---|
2775 | (F) forked child returned an incomprehensible message about its errno.
|
---|
2776 |
|
---|
2777 | =item panic: last
|
---|
2778 |
|
---|
2779 | (P) We popped the context stack to a block context, and then discovered
|
---|
2780 | it wasn't a block context.
|
---|
2781 |
|
---|
2782 | =item panic: leave_scope clearsv
|
---|
2783 |
|
---|
2784 | (P) A writable lexical variable became read-only somehow within the
|
---|
2785 | scope.
|
---|
2786 |
|
---|
2787 | =item panic: leave_scope inconsistency
|
---|
2788 |
|
---|
2789 | (P) The savestack probably got out of sync. At least, there was an
|
---|
2790 | invalid enum on the top of it.
|
---|
2791 |
|
---|
2792 | =item panic: magic_killbackrefs
|
---|
2793 |
|
---|
2794 | (P) Failed an internal consistency check while trying to reset all weak
|
---|
2795 | references to an object.
|
---|
2796 |
|
---|
2797 | =item panic: malloc
|
---|
2798 |
|
---|
2799 | (P) Something requested a negative number of bytes of malloc.
|
---|
2800 |
|
---|
2801 | =item panic: mapstart
|
---|
2802 |
|
---|
2803 | (P) The compiler is screwed up with respect to the map() function.
|
---|
2804 |
|
---|
2805 | =item panic: memory wrap
|
---|
2806 |
|
---|
2807 | (P) Something tried to allocate more memory than possible.
|
---|
2808 |
|
---|
2809 | =item panic: null array
|
---|
2810 |
|
---|
2811 | (P) One of the internal array routines was passed a null AV pointer.
|
---|
2812 |
|
---|
2813 | =item panic: pad_alloc
|
---|
2814 |
|
---|
2815 | (P) The compiler got confused about which scratch pad it was allocating
|
---|
2816 | and freeing temporaries and lexicals from.
|
---|
2817 |
|
---|
2818 | =item panic: pad_free curpad
|
---|
2819 |
|
---|
2820 | (P) The compiler got confused about which scratch pad it was allocating
|
---|
2821 | and freeing temporaries and lexicals from.
|
---|
2822 |
|
---|
2823 | =item panic: pad_free po
|
---|
2824 |
|
---|
2825 | (P) An invalid scratch pad offset was detected internally.
|
---|
2826 |
|
---|
2827 | =item panic: pad_reset curpad
|
---|
2828 |
|
---|
2829 | (P) The compiler got confused about which scratch pad it was allocating
|
---|
2830 | and freeing temporaries and lexicals from.
|
---|
2831 |
|
---|
2832 | =item panic: pad_sv po
|
---|
2833 |
|
---|
2834 | (P) An invalid scratch pad offset was detected internally.
|
---|
2835 |
|
---|
2836 | =item panic: pad_swipe curpad
|
---|
2837 |
|
---|
2838 | (P) The compiler got confused about which scratch pad it was allocating
|
---|
2839 | and freeing temporaries and lexicals from.
|
---|
2840 |
|
---|
2841 | =item panic: pad_swipe po
|
---|
2842 |
|
---|
2843 | (P) An invalid scratch pad offset was detected internally.
|
---|
2844 |
|
---|
2845 | =item panic: pp_iter
|
---|
2846 |
|
---|
2847 | (P) The foreach iterator got called in a non-loop context frame.
|
---|
2848 |
|
---|
2849 | =item panic: pp_match%s
|
---|
2850 |
|
---|
2851 | (P) The internal pp_match() routine was called with invalid operational
|
---|
2852 | data.
|
---|
2853 |
|
---|
2854 | =item panic: pp_split
|
---|
2855 |
|
---|
2856 | (P) Something terrible went wrong in setting up for the split.
|
---|
2857 |
|
---|
2858 | =item panic: realloc
|
---|
2859 |
|
---|
2860 | (P) Something requested a negative number of bytes of realloc.
|
---|
2861 |
|
---|
2862 | =item panic: restartop
|
---|
2863 |
|
---|
2864 | (P) Some internal routine requested a goto (or something like it), and
|
---|
2865 | didn't supply the destination.
|
---|
2866 |
|
---|
2867 | =item panic: return
|
---|
2868 |
|
---|
2869 | (P) We popped the context stack to a subroutine or eval context, and
|
---|
2870 | then discovered it wasn't a subroutine or eval context.
|
---|
2871 |
|
---|
2872 | =item panic: scan_num
|
---|
2873 |
|
---|
2874 | (P) scan_num() got called on something that wasn't a number.
|
---|
2875 |
|
---|
2876 | =item panic: sv_insert
|
---|
2877 |
|
---|
2878 | (P) The sv_insert() routine was told to remove more string than there
|
---|
2879 | was string.
|
---|
2880 |
|
---|
2881 | =item panic: top_env
|
---|
2882 |
|
---|
2883 | (P) The compiler attempted to do a goto, or something weird like that.
|
---|
2884 |
|
---|
2885 | =item panic: utf16_to_utf8: odd bytelen
|
---|
2886 |
|
---|
2887 | (P) Something tried to call utf16_to_utf8 with an odd (as opposed
|
---|
2888 | to even) byte length.
|
---|
2889 |
|
---|
2890 | =item panic: yylex
|
---|
2891 |
|
---|
2892 | (P) The lexer got into a bad state while processing a case modifier.
|
---|
2893 |
|
---|
2894 | =item Parentheses missing around "%s" list
|
---|
2895 |
|
---|
2896 | (W parenthesis) You said something like
|
---|
2897 |
|
---|
2898 | my $foo, $bar = @_;
|
---|
2899 |
|
---|
2900 | when you meant
|
---|
2901 |
|
---|
2902 | my ($foo, $bar) = @_;
|
---|
2903 |
|
---|
2904 | Remember that "my", "our", and "local" bind tighter than comma.
|
---|
2905 |
|
---|
2906 | =item C<-p> destination: %s
|
---|
2907 |
|
---|
2908 | (F) An error occurred during the implicit output invoked by the C<-p>
|
---|
2909 | command-line switch. (This output goes to STDOUT unless you've
|
---|
2910 | redirected it with select().)
|
---|
2911 |
|
---|
2912 | =item (perhaps you forgot to load "%s"?)
|
---|
2913 |
|
---|
2914 | (F) This is an educated guess made in conjunction with the message
|
---|
2915 | "Can't locate object method \"%s\" via package \"%s\"". It often means
|
---|
2916 | that a method requires a package that has not been loaded.
|
---|
2917 |
|
---|
2918 | =item Perl %s required--this is only version %s, stopped
|
---|
2919 |
|
---|
2920 | (F) The module in question uses features of a version of Perl more
|
---|
2921 | recent than the currently running version. How long has it been since
|
---|
2922 | you upgraded, anyway? See L<perlfunc/require>.
|
---|
2923 |
|
---|
2924 | =item PERL_SH_DIR too long
|
---|
2925 |
|
---|
2926 | (F) An error peculiar to OS/2. PERL_SH_DIR is the directory to find the
|
---|
2927 | C<sh>-shell in. See "PERL_SH_DIR" in L<perlos2>.
|
---|
2928 |
|
---|
2929 | =item PERL_SIGNALS illegal: "%s"
|
---|
2930 |
|
---|
2931 | See L<perlrun/PERL_SIGNALS> for legal values.
|
---|
2932 |
|
---|
2933 | =item perl: warning: Setting locale failed.
|
---|
2934 |
|
---|
2935 | (S) The whole warning message will look something like:
|
---|
2936 |
|
---|
2937 | perl: warning: Setting locale failed.
|
---|
2938 | perl: warning: Please check that your locale settings:
|
---|
2939 | LC_ALL = "En_US",
|
---|
2940 | LANG = (unset)
|
---|
2941 | are supported and installed on your system.
|
---|
2942 | perl: warning: Falling back to the standard locale ("C").
|
---|
2943 |
|
---|
2944 | Exactly what were the failed locale settings varies. In the above the
|
---|
2945 | settings were that the LC_ALL was "En_US" and the LANG had no value.
|
---|
2946 | This error means that Perl detected that you and/or your operating
|
---|
2947 | system supplier and/or system administrator have set up the so-called
|
---|
2948 | locale system but Perl could not use those settings. This was not
|
---|
2949 | dead serious, fortunately: there is a "default locale" called "C" that
|
---|
2950 | Perl can and will use, the script will be run. Before you really fix
|
---|
2951 | the problem, however, you will get the same error message each time
|
---|
2952 | you run Perl. How to really fix the problem can be found in
|
---|
2953 | L<perllocale> section B<LOCALE PROBLEMS>.
|
---|
2954 |
|
---|
2955 | =item Permission denied
|
---|
2956 |
|
---|
2957 | (F) The setuid emulator in suidperl decided you were up to no good.
|
---|
2958 |
|
---|
2959 | =item pid %x not a child
|
---|
2960 |
|
---|
2961 | (W exec) A warning peculiar to VMS. Waitpid() was asked to wait for a
|
---|
2962 | process which isn't a subprocess of the current process. While this is
|
---|
2963 | fine from VMS' perspective, it's probably not what you intended.
|
---|
2964 |
|
---|
2965 | =item 'P' must have an explicit size in unpack
|
---|
2966 |
|
---|
2967 | (F) The unpack format P must have an explicit size, not "*".
|
---|
2968 |
|
---|
2969 | =item B<-P> not allowed for setuid/setgid script
|
---|
2970 |
|
---|
2971 | (F) The script would have to be opened by the C preprocessor by name,
|
---|
2972 | which provides a race condition that breaks security.
|
---|
2973 |
|
---|
2974 | =item POSIX class [:%s:] unknown in regex; marked by <-- HERE in m/%s/
|
---|
2975 |
|
---|
2976 | (F) The class in the character class [: :] syntax is unknown. The <-- HERE
|
---|
2977 | shows in the regular expression about where the problem was discovered.
|
---|
2978 | Note that the POSIX character classes do B<not> have the C<is> prefix
|
---|
2979 | the corresponding C interfaces have: in other words, it's C<[[:print:]]>,
|
---|
2980 | not C<isprint>. See L<perlre>.
|
---|
2981 |
|
---|
2982 | =item POSIX getpgrp can't take an argument
|
---|
2983 |
|
---|
2984 | (F) Your system has POSIX getpgrp(), which takes no argument, unlike
|
---|
2985 | the BSD version, which takes a pid.
|
---|
2986 |
|
---|
2987 | =item POSIX syntax [%s] belongs inside character classes in regex; marked by <-- HERE in m/%s/
|
---|
2988 |
|
---|
2989 | (W regexp) The character class constructs [: :], [= =], and [. .] go
|
---|
2990 | I<inside> character classes, the [] are part of the construct, for example:
|
---|
2991 | /[012[:alpha:]345]/. Note that [= =] and [. .] are not currently
|
---|
2992 | implemented; they are simply placeholders for future extensions and will
|
---|
2993 | cause fatal errors. The <-- HERE shows in the regular expression about
|
---|
2994 | where the problem was discovered. See L<perlre>.
|
---|
2995 |
|
---|
2996 | =item POSIX syntax [. .] is reserved for future extensions in regex; marked by <-- HERE in m/%s/
|
---|
2997 |
|
---|
2998 | (F regexp) Within regular expression character classes ([]) the syntax
|
---|
2999 | beginning with "[." and ending with ".]" is reserved for future extensions.
|
---|
3000 | If you need to represent those character sequences inside a regular
|
---|
3001 | expression character class, just quote the square brackets with the
|
---|
3002 | backslash: "\[." and ".\]". The <-- HERE shows in the regular expression
|
---|
3003 | about where the problem was discovered. See L<perlre>.
|
---|
3004 |
|
---|
3005 | =item POSIX syntax [= =] is reserved for future extensions in regex; marked by <-- HERE in m/%s/
|
---|
3006 |
|
---|
3007 | (F) Within regular expression character classes ([]) the syntax beginning
|
---|
3008 | with "[=" and ending with "=]" is reserved for future extensions. If you
|
---|
3009 | need to represent those character sequences inside a regular expression
|
---|
3010 | character class, just quote the square brackets with the backslash: "\[="
|
---|
3011 | and "=\]". The <-- HERE shows in the regular expression about where the
|
---|
3012 | problem was discovered. See L<perlre>.
|
---|
3013 |
|
---|
3014 | =item Possible attempt to put comments in qw() list
|
---|
3015 |
|
---|
3016 | (W qw) qw() lists contain items separated by whitespace; as with literal
|
---|
3017 | strings, comment characters are not ignored, but are instead treated as
|
---|
3018 | literal data. (You may have used different delimiters than the
|
---|
3019 | parentheses shown here; braces are also frequently used.)
|
---|
3020 |
|
---|
3021 | You probably wrote something like this:
|
---|
3022 |
|
---|
3023 | @list = qw(
|
---|
3024 | a # a comment
|
---|
3025 | b # another comment
|
---|
3026 | );
|
---|
3027 |
|
---|
3028 | when you should have written this:
|
---|
3029 |
|
---|
3030 | @list = qw(
|
---|
3031 | a
|
---|
3032 | b
|
---|
3033 | );
|
---|
3034 |
|
---|
3035 | If you really want comments, build your list the
|
---|
3036 | old-fashioned way, with quotes and commas:
|
---|
3037 |
|
---|
3038 | @list = (
|
---|
3039 | 'a', # a comment
|
---|
3040 | 'b', # another comment
|
---|
3041 | );
|
---|
3042 |
|
---|
3043 | =item Possible attempt to separate words with commas
|
---|
3044 |
|
---|
3045 | (W qw) qw() lists contain items separated by whitespace; therefore
|
---|
3046 | commas aren't needed to separate the items. (You may have used
|
---|
3047 | different delimiters than the parentheses shown here; braces are also
|
---|
3048 | frequently used.)
|
---|
3049 |
|
---|
3050 | You probably wrote something like this:
|
---|
3051 |
|
---|
3052 | qw! a, b, c !;
|
---|
3053 |
|
---|
3054 | which puts literal commas into some of the list items. Write it without
|
---|
3055 | commas if you don't want them to appear in your data:
|
---|
3056 |
|
---|
3057 | qw! a b c !;
|
---|
3058 |
|
---|
3059 | =item Possible memory corruption: %s overflowed 3rd argument
|
---|
3060 |
|
---|
3061 | (F) An ioctl() or fcntl() returned more than Perl was bargaining for.
|
---|
3062 | Perl guesses a reasonable buffer size, but puts a sentinel byte at the
|
---|
3063 | end of the buffer just in case. This sentinel byte got clobbered, and
|
---|
3064 | Perl assumes that memory is now corrupted. See L<perlfunc/ioctl>.
|
---|
3065 |
|
---|
3066 | =item Possible precedence problem on bitwise %c operator
|
---|
3067 |
|
---|
3068 | (W precedence) Your program uses a bitwise logical operator in conjunction
|
---|
3069 | with a numeric comparison operator, like this :
|
---|
3070 |
|
---|
3071 | if ($x & $y == 0) { ... }
|
---|
3072 |
|
---|
3073 | This expression is actually equivalent to C<$x & ($y == 0)>, due to the
|
---|
3074 | higher precedence of C<==>. This is probably not what you want. (If you
|
---|
3075 | really meant to write this, disable the warning, or, better, put the
|
---|
3076 | parentheses explicitly and write C<$x & ($y == 0)>).
|
---|
3077 |
|
---|
3078 | =item Possible unintended interpolation of %s in string
|
---|
3079 |
|
---|
3080 | (W ambiguous) You said something like `@foo' in a double-quoted string
|
---|
3081 | but there was no array C<@foo> in scope at the time. If you wanted a
|
---|
3082 | literal @foo, then write it as \@foo; otherwise find out what happened
|
---|
3083 | to the array you apparently lost track of.
|
---|
3084 |
|
---|
3085 | =item Possible Y2K bug: %s
|
---|
3086 |
|
---|
3087 | (W y2k) You are concatenating the number 19 with another number, which
|
---|
3088 | could be a potential Year 2000 problem.
|
---|
3089 |
|
---|
3090 | =item pragma "attrs" is deprecated, use "sub NAME : ATTRS" instead
|
---|
3091 |
|
---|
3092 | (D deprecated) You have written something like this:
|
---|
3093 |
|
---|
3094 | sub doit
|
---|
3095 | {
|
---|
3096 | use attrs qw(locked);
|
---|
3097 | }
|
---|
3098 |
|
---|
3099 | You should use the new declaration syntax instead.
|
---|
3100 |
|
---|
3101 | sub doit : locked
|
---|
3102 | {
|
---|
3103 | ...
|
---|
3104 |
|
---|
3105 | The C<use attrs> pragma is now obsolete, and is only provided for
|
---|
3106 | backward-compatibility. See L<perlsub/"Subroutine Attributes">.
|
---|
3107 |
|
---|
3108 | =item Precedence problem: open %s should be open(%s)
|
---|
3109 |
|
---|
3110 | (S precedence) The old irregular construct
|
---|
3111 |
|
---|
3112 | open FOO || die;
|
---|
3113 |
|
---|
3114 | is now misinterpreted as
|
---|
3115 |
|
---|
3116 | open(FOO || die);
|
---|
3117 |
|
---|
3118 | because of the strict regularization of Perl 5's grammar into unary and
|
---|
3119 | list operators. (The old open was a little of both.) You must put
|
---|
3120 | parentheses around the filehandle, or use the new "or" operator instead
|
---|
3121 | of "||".
|
---|
3122 |
|
---|
3123 | =item Premature end of script headers
|
---|
3124 |
|
---|
3125 | See Server error.
|
---|
3126 |
|
---|
3127 | =item printf() on closed filehandle %s
|
---|
3128 |
|
---|
3129 | (W closed) The filehandle you're writing to got itself closed sometime
|
---|
3130 | before now. Check your control flow.
|
---|
3131 |
|
---|
3132 | =item print() on closed filehandle %s
|
---|
3133 |
|
---|
3134 | (W closed) The filehandle you're printing on got itself closed sometime
|
---|
3135 | before now. Check your control flow.
|
---|
3136 |
|
---|
3137 | =item Process terminated by SIG%s
|
---|
3138 |
|
---|
3139 | (W) This is a standard message issued by OS/2 applications, while *nix
|
---|
3140 | applications die in silence. It is considered a feature of the OS/2
|
---|
3141 | port. One can easily disable this by appropriate sighandlers, see
|
---|
3142 | L<perlipc/"Signals">. See also "Process terminated by SIGTERM/SIGINT"
|
---|
3143 | in L<perlos2>.
|
---|
3144 |
|
---|
3145 | =item Prototype mismatch: %s vs %s
|
---|
3146 |
|
---|
3147 | (S prototype) The subroutine being declared or defined had previously been
|
---|
3148 | declared or defined with a different function prototype.
|
---|
3149 |
|
---|
3150 | =item Prototype not terminated
|
---|
3151 |
|
---|
3152 | (F) You've omitted the closing parenthesis in a function prototype
|
---|
3153 | definition.
|
---|
3154 |
|
---|
3155 | =item Pseudo-hashes are deprecated
|
---|
3156 |
|
---|
3157 | (D deprecated) Pseudo-hashes were deprecated in Perl 5.8.0 and they
|
---|
3158 | will be removed in Perl 5.10.0, see L<perl58delta> for more details.
|
---|
3159 | You can continue to use the C<fields> pragma.
|
---|
3160 |
|
---|
3161 | =item Quantifier follows nothing in regex; marked by <-- HERE in m/%s/
|
---|
3162 |
|
---|
3163 | (F) You started a regular expression with a quantifier. Backslash it if you
|
---|
3164 | meant it literally. The <-- HERE shows in the regular expression about
|
---|
3165 | where the problem was discovered. See L<perlre>.
|
---|
3166 |
|
---|
3167 | =item Quantifier in {,} bigger than %d in regex; marked by <-- HERE in m/%s/
|
---|
3168 |
|
---|
3169 | (F) There is currently a limit to the size of the min and max values of the
|
---|
3170 | {min,max} construct. The <-- HERE shows in the regular expression about where
|
---|
3171 | the problem was discovered. See L<perlre>.
|
---|
3172 |
|
---|
3173 | =item Quantifier unexpected on zero-length expression; marked by <-- HERE in m/%s/
|
---|
3174 |
|
---|
3175 | (W regexp) You applied a regular expression quantifier in a place where
|
---|
3176 | it makes no sense, such as on a zero-width assertion. Try putting the
|
---|
3177 | quantifier inside the assertion instead. For example, the way to match
|
---|
3178 | "abc" provided that it is followed by three repetitions of "xyz" is
|
---|
3179 | C</abc(?=(?:xyz){3})/>, not C</abc(?=xyz){3}/>.
|
---|
3180 |
|
---|
3181 | The <-- HERE shows in the regular expression about where the problem was
|
---|
3182 | discovered.
|
---|
3183 |
|
---|
3184 | =item Range iterator outside integer range
|
---|
3185 |
|
---|
3186 | (F) One (or both) of the numeric arguments to the range operator ".."
|
---|
3187 | are outside the range which can be represented by integers internally.
|
---|
3188 | One possible workaround is to force Perl to use magical string increment
|
---|
3189 | by prepending "0" to your numbers.
|
---|
3190 |
|
---|
3191 | =item readline() on closed filehandle %s
|
---|
3192 |
|
---|
3193 | (W closed) The filehandle you're reading from got itself closed sometime
|
---|
3194 | before now. Check your control flow.
|
---|
3195 |
|
---|
3196 | =item read() on closed filehandle %s
|
---|
3197 |
|
---|
3198 | (W closed) You tried to read from a closed filehandle.
|
---|
3199 |
|
---|
3200 | =item read() on unopened filehandle %s
|
---|
3201 |
|
---|
3202 | (W unopened) You tried to read from a filehandle that was never opened.
|
---|
3203 |
|
---|
3204 | =item Reallocation too large: %lx
|
---|
3205 |
|
---|
3206 | (F) You can't allocate more than 64K on an MS-DOS machine.
|
---|
3207 |
|
---|
3208 | =item realloc() of freed memory ignored
|
---|
3209 |
|
---|
3210 | (S malloc) An internal routine called realloc() on something that had
|
---|
3211 | already been freed.
|
---|
3212 |
|
---|
3213 | =item Recompile perl with B<-D>DEBUGGING to use B<-D> switch
|
---|
3214 |
|
---|
3215 | (F debugging) You can't use the B<-D> option unless the code to produce
|
---|
3216 | the desired output is compiled into Perl, which entails some overhead,
|
---|
3217 | which is why it's currently left out of your copy.
|
---|
3218 |
|
---|
3219 | =item Recursive inheritance detected in package '%s'
|
---|
3220 |
|
---|
3221 | (F) More than 100 levels of inheritance were used. Probably indicates
|
---|
3222 | an unintended loop in your inheritance hierarchy.
|
---|
3223 |
|
---|
3224 | =item Recursive inheritance detected while looking for method %s
|
---|
3225 |
|
---|
3226 | (F) More than 100 levels of inheritance were encountered while invoking
|
---|
3227 | a method. Probably indicates an unintended loop in your inheritance
|
---|
3228 | hierarchy.
|
---|
3229 |
|
---|
3230 | =item Reference found where even-sized list expected
|
---|
3231 |
|
---|
3232 | (W misc) You gave a single reference where Perl was expecting a list
|
---|
3233 | with an even number of elements (for assignment to a hash). This usually
|
---|
3234 | means that you used the anon hash constructor when you meant to use
|
---|
3235 | parens. In any case, a hash requires key/value B<pairs>.
|
---|
3236 |
|
---|
3237 | %hash = { one => 1, two => 2, }; # WRONG
|
---|
3238 | %hash = [ qw/ an anon array / ]; # WRONG
|
---|
3239 | %hash = ( one => 1, two => 2, ); # right
|
---|
3240 | %hash = qw( one 1 two 2 ); # also fine
|
---|
3241 |
|
---|
3242 | =item Reference is already weak
|
---|
3243 |
|
---|
3244 | (W misc) You have attempted to weaken a reference that is already weak.
|
---|
3245 | Doing so has no effect.
|
---|
3246 |
|
---|
3247 | =item Reference miscount in sv_replace()
|
---|
3248 |
|
---|
3249 | (W internal) The internal sv_replace() function was handed a new SV with
|
---|
3250 | a reference count of other than 1.
|
---|
3251 |
|
---|
3252 | =item Reference to nonexistent group in regex; marked by <-- HERE in m/%s/
|
---|
3253 |
|
---|
3254 | (F) You used something like C<\7> in your regular expression, but there are
|
---|
3255 | not at least seven sets of capturing parentheses in the expression. If you
|
---|
3256 | wanted to have the character with value 7 inserted into the regular expression,
|
---|
3257 | prepend a zero to make the number at least two digits: C<\07>
|
---|
3258 |
|
---|
3259 | The <-- HERE shows in the regular expression about where the problem was
|
---|
3260 | discovered.
|
---|
3261 |
|
---|
3262 | =item regexp memory corruption
|
---|
3263 |
|
---|
3264 | (P) The regular expression engine got confused by what the regular
|
---|
3265 | expression compiler gave it.
|
---|
3266 |
|
---|
3267 | =item Regexp out of space
|
---|
3268 |
|
---|
3269 | (P) A "can't happen" error, because safemalloc() should have caught it
|
---|
3270 | earlier.
|
---|
3271 |
|
---|
3272 | =item Repeated format line will never terminate (~~ and @# incompatible)
|
---|
3273 |
|
---|
3274 | (F) Your format contains the ~~ repeat-until-blank sequence and a
|
---|
3275 | numeric field that will never go blank so that the repetition never
|
---|
3276 | terminates. You might use ^# instead. See L<perlform>.
|
---|
3277 |
|
---|
3278 | =item Reversed %s= operator
|
---|
3279 |
|
---|
3280 | (W syntax) You wrote your assignment operator backwards. The = must
|
---|
3281 | always comes last, to avoid ambiguity with subsequent unary operators.
|
---|
3282 |
|
---|
3283 | =item Runaway format
|
---|
3284 |
|
---|
3285 | (F) Your format contained the ~~ repeat-until-blank sequence, but it
|
---|
3286 | produced 200 lines at once, and the 200th line looked exactly like the
|
---|
3287 | 199th line. Apparently you didn't arrange for the arguments to exhaust
|
---|
3288 | themselves, either by using ^ instead of @ (for scalar variables), or by
|
---|
3289 | shifting or popping (for array variables). See L<perlform>.
|
---|
3290 |
|
---|
3291 | =item Scalars leaked: %d
|
---|
3292 |
|
---|
3293 | (P) Something went wrong in Perl's internal bookkeeping of scalars:
|
---|
3294 | not all scalar variables were deallocated by the time Perl exited.
|
---|
3295 | What this usually indicates is a memory leak, which is of course bad,
|
---|
3296 | especially if the Perl program is intended to be long-running.
|
---|
3297 |
|
---|
3298 | =item Scalar value @%s[%s] better written as $%s[%s]
|
---|
3299 |
|
---|
3300 | (W syntax) You've used an array slice (indicated by @) to select a
|
---|
3301 | single element of an array. Generally it's better to ask for a scalar
|
---|
3302 | value (indicated by $). The difference is that C<$foo[&bar]> always
|
---|
3303 | behaves like a scalar, both when assigning to it and when evaluating its
|
---|
3304 | argument, while C<@foo[&bar]> behaves like a list when you assign to it,
|
---|
3305 | and provides a list context to its subscript, which can do weird things
|
---|
3306 | if you're expecting only one subscript.
|
---|
3307 |
|
---|
3308 | On the other hand, if you were actually hoping to treat the array
|
---|
3309 | element as a list, you need to look into how references work, because
|
---|
3310 | Perl will not magically convert between scalars and lists for you. See
|
---|
3311 | L<perlref>.
|
---|
3312 |
|
---|
3313 | =item Scalar value @%s{%s} better written as $%s{%s}
|
---|
3314 |
|
---|
3315 | (W syntax) You've used a hash slice (indicated by @) to select a single
|
---|
3316 | element of a hash. Generally it's better to ask for a scalar value
|
---|
3317 | (indicated by $). The difference is that C<$foo{&bar}> always behaves
|
---|
3318 | like a scalar, both when assigning to it and when evaluating its
|
---|
3319 | argument, while C<@foo{&bar}> behaves like a list when you assign to it,
|
---|
3320 | and provides a list context to its subscript, which can do weird things
|
---|
3321 | if you're expecting only one subscript.
|
---|
3322 |
|
---|
3323 | On the other hand, if you were actually hoping to treat the hash element
|
---|
3324 | as a list, you need to look into how references work, because Perl will
|
---|
3325 | not magically convert between scalars and lists for you. See
|
---|
3326 | L<perlref>.
|
---|
3327 |
|
---|
3328 | =item Script is not setuid/setgid in suidperl
|
---|
3329 |
|
---|
3330 | (F) Oddly, the suidperl program was invoked on a script without a setuid
|
---|
3331 | or setgid bit set. This doesn't make much sense.
|
---|
3332 |
|
---|
3333 | =item Search pattern not terminated
|
---|
3334 |
|
---|
3335 | (F) The lexer couldn't find the final delimiter of a // or m{}
|
---|
3336 | construct. Remember that bracketing delimiters count nesting level.
|
---|
3337 | Missing the leading C<$> from a variable C<$m> may cause this error.
|
---|
3338 |
|
---|
3339 | Note that since Perl 5.9.0 a // can also be the I<defined-or>
|
---|
3340 | construct, not just the empty search pattern. Therefore code written
|
---|
3341 | in Perl 5.9.0 or later that uses the // as the I<defined-or> can be
|
---|
3342 | misparsed by pre-5.9.0 Perls as a non-terminated search pattern.
|
---|
3343 |
|
---|
3344 | =item Search pattern not terminated or ternary operator parsed as search pattern
|
---|
3345 |
|
---|
3346 | (F) The lexer couldn't find the final delimiter of a C<?PATTERN?>
|
---|
3347 | construct.
|
---|
3348 |
|
---|
3349 | The question mark is also used as part of the ternary operator (as in
|
---|
3350 | C<foo ? 0 : 1>) leading to some ambiguous constructions being wrongly
|
---|
3351 | parsed. One way to disambiguate the parsing is to put parentheses around
|
---|
3352 | the conditional expression, i.e. C<(foo) ? 0 : 1>.
|
---|
3353 |
|
---|
3354 | =item %sseek() on unopened filehandle
|
---|
3355 |
|
---|
3356 | (W unopened) You tried to use the seek() or sysseek() function on a
|
---|
3357 | filehandle that was either never opened or has since been closed.
|
---|
3358 |
|
---|
3359 | =item select not implemented
|
---|
3360 |
|
---|
3361 | (F) This machine doesn't implement the select() system call.
|
---|
3362 |
|
---|
3363 | =item Self-ties of arrays and hashes are not supported
|
---|
3364 |
|
---|
3365 | (F) Self-ties are of arrays and hashes are not supported in
|
---|
3366 | the current implementation.
|
---|
3367 |
|
---|
3368 | =item Semicolon seems to be missing
|
---|
3369 |
|
---|
3370 | (W semicolon) A nearby syntax error was probably caused by a missing
|
---|
3371 | semicolon, or possibly some other missing operator, such as a comma.
|
---|
3372 |
|
---|
3373 | =item semi-panic: attempt to dup freed string
|
---|
3374 |
|
---|
3375 | (S internal) The internal newSVsv() routine was called to duplicate a
|
---|
3376 | scalar that had previously been marked as free.
|
---|
3377 |
|
---|
3378 | =item sem%s not implemented
|
---|
3379 |
|
---|
3380 | (F) You don't have System V semaphore IPC on your system.
|
---|
3381 |
|
---|
3382 | =item send() on closed socket %s
|
---|
3383 |
|
---|
3384 | (W closed) The socket you're sending to got itself closed sometime
|
---|
3385 | before now. Check your control flow.
|
---|
3386 |
|
---|
3387 | =item Sequence (? incomplete in regex; marked by <-- HERE in m/%s/
|
---|
3388 |
|
---|
3389 | (F) A regular expression ended with an incomplete extension (?. The <-- HERE
|
---|
3390 | shows in the regular expression about where the problem was discovered. See
|
---|
3391 | L<perlre>.
|
---|
3392 |
|
---|
3393 | =item Sequence (?%s...) not implemented in regex; marked by <-- HERE in m/%s/
|
---|
3394 |
|
---|
3395 | (F) A proposed regular expression extension has the character reserved but
|
---|
3396 | has not yet been written. The <-- HERE shows in the regular expression about
|
---|
3397 | where the problem was discovered. See L<perlre>.
|
---|
3398 |
|
---|
3399 | =item Sequence (?%s...) not recognized in regex; marked by <-- HERE in m/%s/
|
---|
3400 |
|
---|
3401 | (F) You used a regular expression extension that doesn't make sense. The
|
---|
3402 | <-- HERE shows in the regular expression about where the problem was
|
---|
3403 | discovered. See L<perlre>.
|
---|
3404 |
|
---|
3405 | =item Sequence (?#... not terminated in regex; marked by <-- HERE in m/%s/
|
---|
3406 |
|
---|
3407 | (F) A regular expression comment must be terminated by a closing
|
---|
3408 | parenthesis. Embedded parentheses aren't allowed. The <-- HERE shows in
|
---|
3409 | the regular expression about where the problem was discovered. See
|
---|
3410 | L<perlre>.
|
---|
3411 |
|
---|
3412 | =item Sequence (?{...}) not terminated or not {}-balanced in regex; marked by <-- HERE in m/%s/
|
---|
3413 |
|
---|
3414 | (F) If the contents of a (?{...}) clause contains braces, they must balance
|
---|
3415 | for Perl to properly detect the end of the clause. The <-- HERE shows in
|
---|
3416 | the regular expression about where the problem was discovered. See
|
---|
3417 | L<perlre>.
|
---|
3418 |
|
---|
3419 | =item 500 Server error
|
---|
3420 |
|
---|
3421 | See Server error.
|
---|
3422 |
|
---|
3423 | =item Server error
|
---|
3424 |
|
---|
3425 | This is the error message generally seen in a browser window when trying
|
---|
3426 | to run a CGI program (including SSI) over the web. The actual error text
|
---|
3427 | varies widely from server to server. The most frequently-seen variants
|
---|
3428 | are "500 Server error", "Method (something) not permitted", "Document
|
---|
3429 | contains no data", "Premature end of script headers", and "Did not
|
---|
3430 | produce a valid header".
|
---|
3431 |
|
---|
3432 | B<This is a CGI error, not a Perl error>.
|
---|
3433 |
|
---|
3434 | You need to make sure your script is executable, is accessible by the
|
---|
3435 | user CGI is running the script under (which is probably not the user
|
---|
3436 | account you tested it under), does not rely on any environment variables
|
---|
3437 | (like PATH) from the user it isn't running under, and isn't in a
|
---|
3438 | location where the CGI server can't find it, basically, more or less.
|
---|
3439 | Please see the following for more information:
|
---|
3440 |
|
---|
3441 | http://www.perl.org/CGI_MetaFAQ.html
|
---|
3442 | http://www.htmlhelp.org/faq/cgifaq.html
|
---|
3443 | http://www.w3.org/Security/Faq/
|
---|
3444 |
|
---|
3445 | You should also look at L<perlfaq9>.
|
---|
3446 |
|
---|
3447 | =item setegid() not implemented
|
---|
3448 |
|
---|
3449 | (F) You tried to assign to C<$)>, and your operating system doesn't
|
---|
3450 | support the setegid() system call (or equivalent), or at least Configure
|
---|
3451 | didn't think so.
|
---|
3452 |
|
---|
3453 | =item seteuid() not implemented
|
---|
3454 |
|
---|
3455 | (F) You tried to assign to C<< $> >>, and your operating system doesn't
|
---|
3456 | support the seteuid() system call (or equivalent), or at least Configure
|
---|
3457 | didn't think so.
|
---|
3458 |
|
---|
3459 | =item setpgrp can't take arguments
|
---|
3460 |
|
---|
3461 | (F) Your system has the setpgrp() from BSD 4.2, which takes no
|
---|
3462 | arguments, unlike POSIX setpgid(), which takes a process ID and process
|
---|
3463 | group ID.
|
---|
3464 |
|
---|
3465 | =item setrgid() not implemented
|
---|
3466 |
|
---|
3467 | (F) You tried to assign to C<$(>, and your operating system doesn't
|
---|
3468 | support the setrgid() system call (or equivalent), or at least Configure
|
---|
3469 | didn't think so.
|
---|
3470 |
|
---|
3471 | =item setruid() not implemented
|
---|
3472 |
|
---|
3473 | (F) You tried to assign to C<$<>, and your operating system doesn't
|
---|
3474 | support the setruid() system call (or equivalent), or at least Configure
|
---|
3475 | didn't think so.
|
---|
3476 |
|
---|
3477 | =item setsockopt() on closed socket %s
|
---|
3478 |
|
---|
3479 | (W closed) You tried to set a socket option on a closed socket. Did you
|
---|
3480 | forget to check the return value of your socket() call? See
|
---|
3481 | L<perlfunc/setsockopt>.
|
---|
3482 |
|
---|
3483 | =item Setuid/gid script is writable by world
|
---|
3484 |
|
---|
3485 | (F) The setuid emulator won't run a script that is writable by the
|
---|
3486 | world, because the world might have written on it already.
|
---|
3487 |
|
---|
3488 | =item Setuid script not plain file
|
---|
3489 |
|
---|
3490 | (F) The setuid emulator won't run a script that isn't read from a file,
|
---|
3491 | but from a socket, a pipe or another device.
|
---|
3492 |
|
---|
3493 | =item shm%s not implemented
|
---|
3494 |
|
---|
3495 | (F) You don't have System V shared memory IPC on your system.
|
---|
3496 |
|
---|
3497 | =item <> should be quotes
|
---|
3498 |
|
---|
3499 | (F) You wrote C<< require <file> >> when you should have written
|
---|
3500 | C<require 'file'>.
|
---|
3501 |
|
---|
3502 | =item /%s/ should probably be written as "%s"
|
---|
3503 |
|
---|
3504 | (W syntax) You have used a pattern where Perl expected to find a string,
|
---|
3505 | as in the first argument to C<join>. Perl will treat the true or false
|
---|
3506 | result of matching the pattern against $_ as the string, which is
|
---|
3507 | probably not what you had in mind.
|
---|
3508 |
|
---|
3509 | =item shutdown() on closed socket %s
|
---|
3510 |
|
---|
3511 | (W closed) You tried to do a shutdown on a closed socket. Seems a bit
|
---|
3512 | superfluous.
|
---|
3513 |
|
---|
3514 | =item SIG%s handler "%s" not defined
|
---|
3515 |
|
---|
3516 | (W signal) The signal handler named in %SIG doesn't, in fact, exist.
|
---|
3517 | Perhaps you put it into the wrong package?
|
---|
3518 |
|
---|
3519 | =item sort is now a reserved word
|
---|
3520 |
|
---|
3521 | (F) An ancient error message that almost nobody ever runs into anymore.
|
---|
3522 | But before sort was a keyword, people sometimes used it as a filehandle.
|
---|
3523 |
|
---|
3524 | =item Sort subroutine didn't return a numeric value
|
---|
3525 |
|
---|
3526 | (F) A sort comparison routine must return a number. You probably blew
|
---|
3527 | it by not using C<< <=> >> or C<cmp>, or by not using them correctly.
|
---|
3528 | See L<perlfunc/sort>.
|
---|
3529 |
|
---|
3530 | =item Sort subroutine didn't return single value
|
---|
3531 |
|
---|
3532 | (F) A sort comparison subroutine may not return a list value with more
|
---|
3533 | or less than one element. See L<perlfunc/sort>.
|
---|
3534 |
|
---|
3535 | =item splice() offset past end of array
|
---|
3536 |
|
---|
3537 | (W misc) You attempted to specify an offset that was past the end of
|
---|
3538 | the array passed to splice(). Splicing will instead commence at the end
|
---|
3539 | of the array, rather than past it. If this isn't what you want, try
|
---|
3540 | explicitly pre-extending the array by assigning $#array = $offset. See
|
---|
3541 | L<perlfunc/splice>.
|
---|
3542 |
|
---|
3543 | =item Split loop
|
---|
3544 |
|
---|
3545 | (P) The split was looping infinitely. (Obviously, a split shouldn't
|
---|
3546 | iterate more times than there are characters of input, which is what
|
---|
3547 | happened.) See L<perlfunc/split>.
|
---|
3548 |
|
---|
3549 | =item Statement unlikely to be reached
|
---|
3550 |
|
---|
3551 | (W exec) You did an exec() with some statement after it other than a
|
---|
3552 | die(). This is almost always an error, because exec() never returns
|
---|
3553 | unless there was a failure. You probably wanted to use system()
|
---|
3554 | instead, which does return. To suppress this warning, put the exec() in
|
---|
3555 | a block by itself.
|
---|
3556 |
|
---|
3557 | =item stat() on unopened filehandle %s
|
---|
3558 |
|
---|
3559 | (W unopened) You tried to use the stat() function on a filehandle that
|
---|
3560 | was either never opened or has since been closed.
|
---|
3561 |
|
---|
3562 | =item Stub found while resolving method "%s" overloading "%s"
|
---|
3563 |
|
---|
3564 | (P) Overloading resolution over @ISA tree may be broken by importation
|
---|
3565 | stubs. Stubs should never be implicitly created, but explicit calls to
|
---|
3566 | C<can> may break this.
|
---|
3567 |
|
---|
3568 | =item Subroutine %s redefined
|
---|
3569 |
|
---|
3570 | (W redefine) You redefined a subroutine. To suppress this warning, say
|
---|
3571 |
|
---|
3572 | {
|
---|
3573 | no warnings 'redefine';
|
---|
3574 | eval "sub name { ... }";
|
---|
3575 | }
|
---|
3576 |
|
---|
3577 | =item Substitution loop
|
---|
3578 |
|
---|
3579 | (P) The substitution was looping infinitely. (Obviously, a substitution
|
---|
3580 | shouldn't iterate more times than there are characters of input, which
|
---|
3581 | is what happened.) See the discussion of substitution in
|
---|
3582 | L<perlop/"Quote and Quote-like Operators">.
|
---|
3583 |
|
---|
3584 | =item Substitution pattern not terminated
|
---|
3585 |
|
---|
3586 | (F) The lexer couldn't find the interior delimiter of an s/// or s{}{}
|
---|
3587 | construct. Remember that bracketing delimiters count nesting level.
|
---|
3588 | Missing the leading C<$> from variable C<$s> may cause this error.
|
---|
3589 |
|
---|
3590 | =item Substitution replacement not terminated
|
---|
3591 |
|
---|
3592 | (F) The lexer couldn't find the final delimiter of an s/// or s{}{}
|
---|
3593 | construct. Remember that bracketing delimiters count nesting level.
|
---|
3594 | Missing the leading C<$> from variable C<$s> may cause this error.
|
---|
3595 |
|
---|
3596 | =item substr outside of string
|
---|
3597 |
|
---|
3598 | (W substr),(F) You tried to reference a substr() that pointed outside of
|
---|
3599 | a string. That is, the absolute value of the offset was larger than the
|
---|
3600 | length of the string. See L<perlfunc/substr>. This warning is fatal if
|
---|
3601 | substr is used in an lvalue context (as the left hand side of an
|
---|
3602 | assignment or as a subroutine argument for example).
|
---|
3603 |
|
---|
3604 | =item suidperl is no longer needed since %s
|
---|
3605 |
|
---|
3606 | (F) Your Perl was compiled with B<-D>SETUID_SCRIPTS_ARE_SECURE_NOW, but
|
---|
3607 | a version of the setuid emulator somehow got run anyway.
|
---|
3608 |
|
---|
3609 | =item Switch (?(condition)... contains too many branches in regex; marked by <-- HERE in m/%s/
|
---|
3610 |
|
---|
3611 | (F) A (?(condition)if-clause|else-clause) construct can have at most two
|
---|
3612 | branches (the if-clause and the else-clause). If you want one or both to
|
---|
3613 | contain alternation, such as using C<this|that|other>, enclose it in
|
---|
3614 | clustering parentheses:
|
---|
3615 |
|
---|
3616 | (?(condition)(?:this|that|other)|else-clause)
|
---|
3617 |
|
---|
3618 | The <-- HERE shows in the regular expression about where the problem was
|
---|
3619 | discovered. See L<perlre>.
|
---|
3620 |
|
---|
3621 | =item Switch condition not recognized in regex; marked by <-- HERE in m/%s/
|
---|
3622 |
|
---|
3623 | (F) If the argument to the (?(...)if-clause|else-clause) construct is a
|
---|
3624 | number, it can be only a number. The <-- HERE shows in the regular expression
|
---|
3625 | about where the problem was discovered. See L<perlre>.
|
---|
3626 |
|
---|
3627 | =item switching effective %s is not implemented
|
---|
3628 |
|
---|
3629 | (F) While under the C<use filetest> pragma, we cannot switch the real
|
---|
3630 | and effective uids or gids.
|
---|
3631 |
|
---|
3632 | =item %s syntax
|
---|
3633 |
|
---|
3634 | (F) The final summary message when a C<perl -c> succeeds.
|
---|
3635 |
|
---|
3636 | =item syntax error
|
---|
3637 |
|
---|
3638 | (F) Probably means you had a syntax error. Common reasons include:
|
---|
3639 |
|
---|
3640 | A keyword is misspelled.
|
---|
3641 | A semicolon is missing.
|
---|
3642 | A comma is missing.
|
---|
3643 | An opening or closing parenthesis is missing.
|
---|
3644 | An opening or closing brace is missing.
|
---|
3645 | A closing quote is missing.
|
---|
3646 |
|
---|
3647 | Often there will be another error message associated with the syntax
|
---|
3648 | error giving more information. (Sometimes it helps to turn on B<-w>.)
|
---|
3649 | The error message itself often tells you where it was in the line when
|
---|
3650 | it decided to give up. Sometimes the actual error is several tokens
|
---|
3651 | before this, because Perl is good at understanding random input.
|
---|
3652 | Occasionally the line number may be misleading, and once in a blue moon
|
---|
3653 | the only way to figure out what's triggering the error is to call
|
---|
3654 | C<perl -c> repeatedly, chopping away half the program each time to see
|
---|
3655 | if the error went away. Sort of the cybernetic version of S<20
|
---|
3656 | questions>.
|
---|
3657 |
|
---|
3658 | =item syntax error at line %d: `%s' unexpected
|
---|
3659 |
|
---|
3660 | (A) You've accidentally run your script through the Bourne shell instead
|
---|
3661 | of Perl. Check the #! line, or manually feed your script into Perl
|
---|
3662 | yourself.
|
---|
3663 |
|
---|
3664 | =item syntax error in file %s at line %d, next 2 tokens "%s"
|
---|
3665 |
|
---|
3666 | (F) This error is likely to occur if you run a perl5 script through
|
---|
3667 | a perl4 interpreter, especially if the next 2 tokens are "use strict"
|
---|
3668 | or "my $var" or "our $var".
|
---|
3669 |
|
---|
3670 | =item sysread() on closed filehandle %s
|
---|
3671 |
|
---|
3672 | (W closed) You tried to read from a closed filehandle.
|
---|
3673 |
|
---|
3674 | =item sysread() on unopened filehandle %s
|
---|
3675 |
|
---|
3676 | (W unopened) You tried to read from a filehandle that was never opened.
|
---|
3677 |
|
---|
3678 | =item System V %s is not implemented on this machine
|
---|
3679 |
|
---|
3680 | (F) You tried to do something with a function beginning with "sem",
|
---|
3681 | "shm", or "msg" but that System V IPC is not implemented in your
|
---|
3682 | machine. In some machines the functionality can exist but be
|
---|
3683 | unconfigured. Consult your system support.
|
---|
3684 |
|
---|
3685 | =item syswrite() on closed filehandle %s
|
---|
3686 |
|
---|
3687 | (W closed) The filehandle you're writing to got itself closed sometime
|
---|
3688 | before now. Check your control flow.
|
---|
3689 |
|
---|
3690 | =item C<-T> and C<-B> not implemented on filehandles
|
---|
3691 |
|
---|
3692 | (F) Perl can't peek at the stdio buffer of filehandles when it doesn't
|
---|
3693 | know about your kind of stdio. You'll have to use a filename instead.
|
---|
3694 |
|
---|
3695 | =item Target of goto is too deeply nested
|
---|
3696 |
|
---|
3697 | (F) You tried to use C<goto> to reach a label that was too deeply nested
|
---|
3698 | for Perl to reach. Perl is doing you a favor by refusing.
|
---|
3699 |
|
---|
3700 | =item tell() on unopened filehandle
|
---|
3701 |
|
---|
3702 | (W unopened) You tried to use the tell() function on a filehandle that
|
---|
3703 | was either never opened or has since been closed.
|
---|
3704 |
|
---|
3705 | =item That use of $[ is unsupported
|
---|
3706 |
|
---|
3707 | (F) Assignment to C<$[> is now strictly circumscribed, and interpreted
|
---|
3708 | as a compiler directive. You may say only one of
|
---|
3709 |
|
---|
3710 | $[ = 0;
|
---|
3711 | $[ = 1;
|
---|
3712 | ...
|
---|
3713 | local $[ = 0;
|
---|
3714 | local $[ = 1;
|
---|
3715 | ...
|
---|
3716 |
|
---|
3717 | This is to prevent the problem of one module changing the array base out
|
---|
3718 | from under another module inadvertently. See L<perlvar/$[>.
|
---|
3719 |
|
---|
3720 | =item The crypt() function is unimplemented due to excessive paranoia
|
---|
3721 |
|
---|
3722 | (F) Configure couldn't find the crypt() function on your machine,
|
---|
3723 | probably because your vendor didn't supply it, probably because they
|
---|
3724 | think the U.S. Government thinks it's a secret, or at least that they
|
---|
3725 | will continue to pretend that it is. And if you quote me on that, I
|
---|
3726 | will deny it.
|
---|
3727 |
|
---|
3728 | =item The %s function is unimplemented
|
---|
3729 |
|
---|
3730 | The function indicated isn't implemented on this architecture, according
|
---|
3731 | to the probings of Configure.
|
---|
3732 |
|
---|
3733 | =item The stat preceding %s wasn't an lstat
|
---|
3734 |
|
---|
3735 | (F) It makes no sense to test the current stat buffer for symbolic
|
---|
3736 | linkhood if the last stat that wrote to the stat buffer already went
|
---|
3737 | past the symlink to get to the real file. Use an actual filename
|
---|
3738 | instead.
|
---|
3739 |
|
---|
3740 | =item The 'unique' attribute may only be applied to 'our' variables
|
---|
3741 |
|
---|
3742 | (F) Currently this attribute is not supported on C<my> or C<sub>
|
---|
3743 | declarations. See L<perlfunc/our>.
|
---|
3744 |
|
---|
3745 | =item This Perl can't reset CRTL environ elements (%s)
|
---|
3746 |
|
---|
3747 | =item This Perl can't set CRTL environ elements (%s=%s)
|
---|
3748 |
|
---|
3749 | (W internal) Warnings peculiar to VMS. You tried to change or delete an
|
---|
3750 | element of the CRTL's internal environ array, but your copy of Perl
|
---|
3751 | wasn't built with a CRTL that contained the setenv() function. You'll
|
---|
3752 | need to rebuild Perl with a CRTL that does, or redefine
|
---|
3753 | F<PERL_ENV_TABLES> (see L<perlvms>) so that the environ array isn't the
|
---|
3754 | target of the change to
|
---|
3755 | %ENV which produced the warning.
|
---|
3756 |
|
---|
3757 | =item thread failed to start: %s
|
---|
3758 |
|
---|
3759 | (W threads)(S) The entry point function of threads->create() failed for some reason.
|
---|
3760 |
|
---|
3761 | =item 5.005 threads are deprecated
|
---|
3762 |
|
---|
3763 | (D deprecated) The 5.005-style threads (activated by C<use Thread;>)
|
---|
3764 | are deprecated and one should use the new ithreads instead,
|
---|
3765 | see L<perl58delta> for more details.
|
---|
3766 |
|
---|
3767 | =item times not implemented
|
---|
3768 |
|
---|
3769 | (F) Your version of the C library apparently doesn't do times(). I
|
---|
3770 | suspect you're not running on Unix.
|
---|
3771 |
|
---|
3772 | =item "-T" is on the #! line, it must also be used on the command line
|
---|
3773 |
|
---|
3774 | (X) The #! line (or local equivalent) in a Perl script contains the
|
---|
3775 | B<-T> option, but Perl was not invoked with B<-T> in its command line.
|
---|
3776 | This is an error because, by the time Perl discovers a B<-T> in a
|
---|
3777 | script, it's too late to properly taint everything from the environment.
|
---|
3778 | So Perl gives up.
|
---|
3779 |
|
---|
3780 | If the Perl script is being executed as a command using the #!
|
---|
3781 | mechanism (or its local equivalent), this error can usually be fixed by
|
---|
3782 | editing the #! line so that the B<-T> option is a part of Perl's first
|
---|
3783 | argument: e.g. change C<perl -n -T> to C<perl -T -n>.
|
---|
3784 |
|
---|
3785 | If the Perl script is being executed as C<perl scriptname>, then the
|
---|
3786 | B<-T> option must appear on the command line: C<perl -T scriptname>.
|
---|
3787 |
|
---|
3788 | =item To%s: illegal mapping '%s'
|
---|
3789 |
|
---|
3790 | (F) You tried to define a customized To-mapping for lc(), lcfirst,
|
---|
3791 | uc(), or ucfirst() (or their string-inlined versions), but you
|
---|
3792 | specified an illegal mapping.
|
---|
3793 | See L<perlunicode/"User-Defined Character Properties">.
|
---|
3794 |
|
---|
3795 | =item Too deeply nested ()-groups
|
---|
3796 |
|
---|
3797 | (F) Your template contains ()-groups with a ridiculously deep nesting level.
|
---|
3798 |
|
---|
3799 | =item Too few args to syscall
|
---|
3800 |
|
---|
3801 | (F) There has to be at least one argument to syscall() to specify the
|
---|
3802 | system call to call, silly dilly.
|
---|
3803 |
|
---|
3804 | =item Too late for "-%s" option
|
---|
3805 |
|
---|
3806 | (X) The #! line (or local equivalent) in a Perl script contains the
|
---|
3807 | B<-M> or B<-m> option. This is an error because B<-M> and B<-m> options
|
---|
3808 | are not intended for use inside scripts. Use the C<use> pragma instead.
|
---|
3809 |
|
---|
3810 | =item Too late to run %s block
|
---|
3811 |
|
---|
3812 | (W void) A CHECK or INIT block is being defined during run time proper,
|
---|
3813 | when the opportunity to run them has already passed. Perhaps you are
|
---|
3814 | loading a file with C<require> or C<do> when you should be using C<use>
|
---|
3815 | instead. Or perhaps you should put the C<require> or C<do> inside a
|
---|
3816 | BEGIN block.
|
---|
3817 |
|
---|
3818 | =item Too many args to syscall
|
---|
3819 |
|
---|
3820 | (F) Perl supports a maximum of only 14 args to syscall().
|
---|
3821 |
|
---|
3822 | =item Too many arguments for %s
|
---|
3823 |
|
---|
3824 | (F) The function requires fewer arguments than you specified.
|
---|
3825 |
|
---|
3826 | =item Too many )'s
|
---|
3827 |
|
---|
3828 | (A) You've accidentally run your script through B<csh> instead of Perl.
|
---|
3829 | Check the #! line, or manually feed your script into Perl yourself.
|
---|
3830 |
|
---|
3831 | =item Too many ('s
|
---|
3832 |
|
---|
3833 | (A) You've accidentally run your script through B<csh> instead of Perl.
|
---|
3834 | Check the #! line, or manually feed your script into Perl yourself.
|
---|
3835 |
|
---|
3836 | =item Trailing \ in regex m/%s/
|
---|
3837 |
|
---|
3838 | (F) The regular expression ends with an unbackslashed backslash.
|
---|
3839 | Backslash it. See L<perlre>.
|
---|
3840 |
|
---|
3841 | =item Transliteration pattern not terminated
|
---|
3842 |
|
---|
3843 | (F) The lexer couldn't find the interior delimiter of a tr/// or tr[][]
|
---|
3844 | or y/// or y[][] construct. Missing the leading C<$> from variables
|
---|
3845 | C<$tr> or C<$y> may cause this error.
|
---|
3846 |
|
---|
3847 | =item Transliteration replacement not terminated
|
---|
3848 |
|
---|
3849 | (F) The lexer couldn't find the final delimiter of a tr///, tr[][],
|
---|
3850 | y/// or y[][] construct.
|
---|
3851 |
|
---|
3852 | =item '%s' trapped by operation mask
|
---|
3853 |
|
---|
3854 | (F) You tried to use an operator from a Safe compartment in which it's
|
---|
3855 | disallowed. See L<Safe>.
|
---|
3856 |
|
---|
3857 | =item truncate not implemented
|
---|
3858 |
|
---|
3859 | (F) Your machine doesn't implement a file truncation mechanism that
|
---|
3860 | Configure knows about.
|
---|
3861 |
|
---|
3862 | =item Type of arg %d to %s must be %s (not %s)
|
---|
3863 |
|
---|
3864 | (F) This function requires the argument in that position to be of a
|
---|
3865 | certain type. Arrays must be @NAME or C<@{EXPR}>. Hashes must be
|
---|
3866 | %NAME or C<%{EXPR}>. No implicit dereferencing is allowed--use the
|
---|
3867 | {EXPR} forms as an explicit dereference. See L<perlref>.
|
---|
3868 |
|
---|
3869 | =item umask not implemented
|
---|
3870 |
|
---|
3871 | (F) Your machine doesn't implement the umask function and you tried to
|
---|
3872 | use it to restrict permissions for yourself (EXPR & 0700).
|
---|
3873 |
|
---|
3874 | =item Unable to create sub named "%s"
|
---|
3875 |
|
---|
3876 | (F) You attempted to create or access a subroutine with an illegal name.
|
---|
3877 |
|
---|
3878 | =item Unbalanced context: %d more PUSHes than POPs
|
---|
3879 |
|
---|
3880 | (W internal) The exit code detected an internal inconsistency in how
|
---|
3881 | many execution contexts were entered and left.
|
---|
3882 |
|
---|
3883 | =item Unbalanced saves: %d more saves than restores
|
---|
3884 |
|
---|
3885 | (W internal) The exit code detected an internal inconsistency in how
|
---|
3886 | many values were temporarily localized.
|
---|
3887 |
|
---|
3888 | =item Unbalanced scopes: %d more ENTERs than LEAVEs
|
---|
3889 |
|
---|
3890 | (W internal) The exit code detected an internal inconsistency in how
|
---|
3891 | many blocks were entered and left.
|
---|
3892 |
|
---|
3893 | =item Unbalanced tmps: %d more allocs than frees
|
---|
3894 |
|
---|
3895 | (W internal) The exit code detected an internal inconsistency in how
|
---|
3896 | many mortal scalars were allocated and freed.
|
---|
3897 |
|
---|
3898 | =item Undefined format "%s" called
|
---|
3899 |
|
---|
3900 | (F) The format indicated doesn't seem to exist. Perhaps it's really in
|
---|
3901 | another package? See L<perlform>.
|
---|
3902 |
|
---|
3903 | =item Undefined sort subroutine "%s" called
|
---|
3904 |
|
---|
3905 | (F) The sort comparison routine specified doesn't seem to exist.
|
---|
3906 | Perhaps it's in a different package? See L<perlfunc/sort>.
|
---|
3907 |
|
---|
3908 | =item Undefined subroutine &%s called
|
---|
3909 |
|
---|
3910 | (F) The subroutine indicated hasn't been defined, or if it was, it has
|
---|
3911 | since been undefined.
|
---|
3912 |
|
---|
3913 | =item Undefined subroutine called
|
---|
3914 |
|
---|
3915 | (F) The anonymous subroutine you're trying to call hasn't been defined,
|
---|
3916 | or if it was, it has since been undefined.
|
---|
3917 |
|
---|
3918 | =item Undefined subroutine in sort
|
---|
3919 |
|
---|
3920 | (F) The sort comparison routine specified is declared but doesn't seem
|
---|
3921 | to have been defined yet. See L<perlfunc/sort>.
|
---|
3922 |
|
---|
3923 | =item Undefined top format "%s" called
|
---|
3924 |
|
---|
3925 | (F) The format indicated doesn't seem to exist. Perhaps it's really in
|
---|
3926 | another package? See L<perlform>.
|
---|
3927 |
|
---|
3928 | =item Undefined value assigned to typeglob
|
---|
3929 |
|
---|
3930 | (W misc) An undefined value was assigned to a typeglob, a la
|
---|
3931 | C<*foo = undef>. This does nothing. It's possible that you really mean
|
---|
3932 | C<undef *foo>.
|
---|
3933 |
|
---|
3934 | =item %s: Undefined variable
|
---|
3935 |
|
---|
3936 | (A) You've accidentally run your script through B<csh> instead of Perl.
|
---|
3937 | Check the #! line, or manually feed your script into Perl yourself.
|
---|
3938 |
|
---|
3939 | =item unexec of %s into %s failed!
|
---|
3940 |
|
---|
3941 | (F) The unexec() routine failed for some reason. See your local FSF
|
---|
3942 | representative, who probably put it there in the first place.
|
---|
3943 |
|
---|
3944 | =item Unicode character %s is illegal
|
---|
3945 |
|
---|
3946 | (W utf8) Certain Unicode characters have been designated off-limits by
|
---|
3947 | the Unicode standard and should not be generated. If you really know
|
---|
3948 | what you are doing you can turn off this warning by C<no warnings 'utf8';>.
|
---|
3949 |
|
---|
3950 | =item Unknown BYTEORDER
|
---|
3951 |
|
---|
3952 | (F) There are no byte-swapping functions for a machine with this byte
|
---|
3953 | order.
|
---|
3954 |
|
---|
3955 | =item Unknown open() mode '%s'
|
---|
3956 |
|
---|
3957 | (F) The second argument of 3-argument open() is not among the list
|
---|
3958 | of valid modes: C<< < >>, C<< > >>, C<<< >> >>>, C<< +< >>,
|
---|
3959 | C<< +> >>, C<<< +>> >>>, C<-|>, C<|->, C<< <& >>, C<< >& >>.
|
---|
3960 |
|
---|
3961 | =item Unknown PerlIO layer "%s"
|
---|
3962 |
|
---|
3963 | (W layer) An attempt was made to push an unknown layer onto the Perl I/O
|
---|
3964 | system. (Layers take care of transforming data between external and
|
---|
3965 | internal representations.) Note that some layers, such as C<mmap>,
|
---|
3966 | are not supported in all environments. If your program didn't
|
---|
3967 | explicitly request the failing operation, it may be the result of the
|
---|
3968 | value of the environment variable PERLIO.
|
---|
3969 |
|
---|
3970 | =item Unknown process %x sent message to prime_env_iter: %s
|
---|
3971 |
|
---|
3972 | (P) An error peculiar to VMS. Perl was reading values for %ENV before
|
---|
3973 | iterating over it, and someone else stuck a message in the stream of
|
---|
3974 | data Perl expected. Someone's very confused, or perhaps trying to
|
---|
3975 | subvert Perl's population of %ENV for nefarious purposes.
|
---|
3976 |
|
---|
3977 | =item Unknown "re" subpragma '%s' (known ones are: %s)
|
---|
3978 |
|
---|
3979 | You tried to use an unknown subpragma of the "re" pragma.
|
---|
3980 |
|
---|
3981 | =item Unknown switch condition (?(%.2s in regex; marked by <-- HERE in m/%s/
|
---|
3982 |
|
---|
3983 | (F) The condition part of a (?(condition)if-clause|else-clause) construct
|
---|
3984 | is not known. The condition may be lookahead or lookbehind (the condition
|
---|
3985 | is true if the lookahead or lookbehind is true), a (?{...}) construct (the
|
---|
3986 | condition is true if the code evaluates to a true value), or a number (the
|
---|
3987 | condition is true if the set of capturing parentheses named by the number
|
---|
3988 | matched).
|
---|
3989 |
|
---|
3990 | The <-- HERE shows in the regular expression about where the problem was
|
---|
3991 | discovered. See L<perlre>.
|
---|
3992 |
|
---|
3993 | =item Unknown Unicode option letter '%c'
|
---|
3994 |
|
---|
3995 | You specified an unknown Unicode option. See L<perlrun> documentation
|
---|
3996 | of the C<-C> switch for the list of known options.
|
---|
3997 |
|
---|
3998 | =item Unknown Unicode option value %x
|
---|
3999 |
|
---|
4000 | You specified an unknown Unicode option. See L<perlrun> documentation
|
---|
4001 | of the C<-C> switch for the list of known options.
|
---|
4002 |
|
---|
4003 | =item Unknown warnings category '%s'
|
---|
4004 |
|
---|
4005 | (F) An error issued by the C<warnings> pragma. You specified a warnings
|
---|
4006 | category that is unknown to perl at this point.
|
---|
4007 |
|
---|
4008 | Note that if you want to enable a warnings category registered by a module
|
---|
4009 | (e.g. C<use warnings 'File::Find'>), you must have imported this module
|
---|
4010 | first.
|
---|
4011 |
|
---|
4012 | =item unmatched [ in regex; marked by <-- HERE in m/%s/
|
---|
4013 |
|
---|
4014 | (F) The brackets around a character class must match. If you wish to
|
---|
4015 | include a closing bracket in a character class, backslash it or put it
|
---|
4016 | first. The <-- HERE shows in the regular expression about where the problem
|
---|
4017 | was discovered. See L<perlre>.
|
---|
4018 |
|
---|
4019 | =item unmatched ( in regex; marked by <-- HERE in m/%s/
|
---|
4020 |
|
---|
4021 | (F) Unbackslashed parentheses must always be balanced in regular
|
---|
4022 | expressions. If you're a vi user, the % key is valuable for finding the
|
---|
4023 | matching parenthesis. The <-- HERE shows in the regular expression about
|
---|
4024 | where the problem was discovered. See L<perlre>.
|
---|
4025 |
|
---|
4026 | =item Unmatched right %s bracket
|
---|
4027 |
|
---|
4028 | (F) The lexer counted more closing curly or square brackets than opening
|
---|
4029 | ones, so you're probably missing a matching opening bracket. As a
|
---|
4030 | general rule, you'll find the missing one (so to speak) near the place
|
---|
4031 | you were last editing.
|
---|
4032 |
|
---|
4033 | =item Unquoted string "%s" may clash with future reserved word
|
---|
4034 |
|
---|
4035 | (W reserved) You used a bareword that might someday be claimed as a
|
---|
4036 | reserved word. It's best to put such a word in quotes, or capitalize it
|
---|
4037 | somehow, or insert an underbar into it. You might also declare it as a
|
---|
4038 | subroutine.
|
---|
4039 |
|
---|
4040 | =item Unrecognized character %s
|
---|
4041 |
|
---|
4042 | (F) The Perl parser has no idea what to do with the specified character
|
---|
4043 | in your Perl script (or eval). Perhaps you tried to run a compressed
|
---|
4044 | script, a binary program, or a directory as a Perl program.
|
---|
4045 |
|
---|
4046 | =item /%s/: Unrecognized escape \\%c in character class passed through
|
---|
4047 |
|
---|
4048 | (W regexp) You used a backslash-character combination which is not
|
---|
4049 | recognized by Perl inside character classes. The character was
|
---|
4050 | understood literally.
|
---|
4051 |
|
---|
4052 | =item Unrecognized escape \\%c passed through
|
---|
4053 |
|
---|
4054 | (W misc) You used a backslash-character combination which is not
|
---|
4055 | recognized by Perl.
|
---|
4056 |
|
---|
4057 | =item Unrecognized escape \\%c passed through in regex; marked by <-- HERE in m/%s/
|
---|
4058 |
|
---|
4059 | (W regexp) You used a backslash-character combination which is not
|
---|
4060 | recognized by Perl. This combination appears in an interpolated variable or
|
---|
4061 | a C<'>-delimited regular expression. The character was understood
|
---|
4062 | literally. The <-- HERE shows in the regular expression about where the
|
---|
4063 | escape was discovered.
|
---|
4064 |
|
---|
4065 | =item Unrecognized signal name "%s"
|
---|
4066 |
|
---|
4067 | (F) You specified a signal name to the kill() function that was not
|
---|
4068 | recognized. Say C<kill -l> in your shell to see the valid signal names
|
---|
4069 | on your system.
|
---|
4070 |
|
---|
4071 | =item Unrecognized switch: -%s (-h will show valid options)
|
---|
4072 |
|
---|
4073 | (F) You specified an illegal option to Perl. Don't do that. (If you
|
---|
4074 | think you didn't do that, check the #! line to see if it's supplying the
|
---|
4075 | bad switch on your behalf.)
|
---|
4076 |
|
---|
4077 | =item Unsuccessful %s on filename containing newline
|
---|
4078 |
|
---|
4079 | (W newline) A file operation was attempted on a filename, and that
|
---|
4080 | operation failed, PROBABLY because the filename contained a newline,
|
---|
4081 | PROBABLY because you forgot to chomp() it off. See L<perlfunc/chomp>.
|
---|
4082 |
|
---|
4083 | =item Unsupported directory function "%s" called
|
---|
4084 |
|
---|
4085 | (F) Your machine doesn't support opendir() and readdir().
|
---|
4086 |
|
---|
4087 | =item Unsupported function %s
|
---|
4088 |
|
---|
4089 | (F) This machine doesn't implement the indicated function, apparently.
|
---|
4090 | At least, Configure doesn't think so.
|
---|
4091 |
|
---|
4092 | =item Unsupported function fork
|
---|
4093 |
|
---|
4094 | (F) Your version of executable does not support forking.
|
---|
4095 |
|
---|
4096 | Note that under some systems, like OS/2, there may be different flavors
|
---|
4097 | of Perl executables, some of which may support fork, some not. Try
|
---|
4098 | changing the name you call Perl by to C<perl_>, C<perl__>, and so on.
|
---|
4099 |
|
---|
4100 | =item Unsupported script encoding %s
|
---|
4101 |
|
---|
4102 | (F) Your program file begins with a Unicode Byte Order Mark (BOM) which
|
---|
4103 | declares it to be in a Unicode encoding that Perl cannot read.
|
---|
4104 |
|
---|
4105 | =item Unsupported socket function "%s" called
|
---|
4106 |
|
---|
4107 | (F) Your machine doesn't support the Berkeley socket mechanism, or at
|
---|
4108 | least that's what Configure thought.
|
---|
4109 |
|
---|
4110 | =item Unterminated attribute list
|
---|
4111 |
|
---|
4112 | (F) The lexer found something other than a simple identifier at the
|
---|
4113 | start of an attribute, and it wasn't a semicolon or the start of a
|
---|
4114 | block. Perhaps you terminated the parameter list of the previous
|
---|
4115 | attribute too soon. See L<attributes>.
|
---|
4116 |
|
---|
4117 | =item Unterminated attribute parameter in attribute list
|
---|
4118 |
|
---|
4119 | (F) The lexer saw an opening (left) parenthesis character while parsing
|
---|
4120 | an attribute list, but the matching closing (right) parenthesis
|
---|
4121 | character was not found. You may need to add (or remove) a backslash
|
---|
4122 | character to get your parentheses to balance. See L<attributes>.
|
---|
4123 |
|
---|
4124 | =item Unterminated compressed integer
|
---|
4125 |
|
---|
4126 | (F) An argument to unpack("w",...) was incompatible with the BER
|
---|
4127 | compressed integer format and could not be converted to an integer.
|
---|
4128 | See L<perlfunc/pack>.
|
---|
4129 |
|
---|
4130 | =item Unterminated <> operator
|
---|
4131 |
|
---|
4132 | (F) The lexer saw a left angle bracket in a place where it was expecting
|
---|
4133 | a term, so it's looking for the corresponding right angle bracket, and
|
---|
4134 | not finding it. Chances are you left some needed parentheses out
|
---|
4135 | earlier in the line, and you really meant a "less than".
|
---|
4136 |
|
---|
4137 | =item untie attempted while %d inner references still exist
|
---|
4138 |
|
---|
4139 | (W untie) A copy of the object returned from C<tie> (or C<tied>) was
|
---|
4140 | still valid when C<untie> was called.
|
---|
4141 |
|
---|
4142 | =item Usage: POSIX::%s(%s)
|
---|
4143 |
|
---|
4144 | (F) You called a POSIX function with incorrect arguments.
|
---|
4145 | See L<POSIX/FUNCTIONS> for more information.
|
---|
4146 |
|
---|
4147 | =item Usage: Win32::%s(%s)
|
---|
4148 |
|
---|
4149 | (F) You called a Win32 function with incorrect arguments.
|
---|
4150 | See L<Win32> for more information.
|
---|
4151 |
|
---|
4152 | =item Useless (?-%s) - don't use /%s modifier in regex; marked by <-- HERE in m/%s/
|
---|
4153 |
|
---|
4154 | (W regexp) You have used an internal modifier such as (?-o) that has no
|
---|
4155 | meaning unless removed from the entire regexp:
|
---|
4156 |
|
---|
4157 | if ($string =~ /(?-o)$pattern/o) { ... }
|
---|
4158 |
|
---|
4159 | must be written as
|
---|
4160 |
|
---|
4161 | if ($string =~ /$pattern/) { ... }
|
---|
4162 |
|
---|
4163 | The <-- HERE shows in the regular expression about
|
---|
4164 | where the problem was discovered. See L<perlre>.
|
---|
4165 |
|
---|
4166 | =item Useless (?%s) - use /%s modifier in regex; marked by <-- HERE in m/%s/
|
---|
4167 |
|
---|
4168 | (W regexp) You have used an internal modifier such as (?o) that has no
|
---|
4169 | meaning unless applied to the entire regexp:
|
---|
4170 |
|
---|
4171 | if ($string =~ /(?o)$pattern/) { ... }
|
---|
4172 |
|
---|
4173 | must be written as
|
---|
4174 |
|
---|
4175 | if ($string =~ /$pattern/o) { ... }
|
---|
4176 |
|
---|
4177 | The <-- HERE shows in the regular expression about
|
---|
4178 | where the problem was discovered. See L<perlre>.
|
---|
4179 |
|
---|
4180 | =item Useless use of %s in void context
|
---|
4181 |
|
---|
4182 | (W void) You did something without a side effect in a context that does
|
---|
4183 | nothing with the return value, such as a statement that doesn't return a
|
---|
4184 | value from a block, or the left side of a scalar comma operator. Very
|
---|
4185 | often this points not to stupidity on your part, but a failure of Perl
|
---|
4186 | to parse your program the way you thought it would. For example, you'd
|
---|
4187 | get this if you mixed up your C precedence with Python precedence and
|
---|
4188 | said
|
---|
4189 |
|
---|
4190 | $one, $two = 1, 2;
|
---|
4191 |
|
---|
4192 | when you meant to say
|
---|
4193 |
|
---|
4194 | ($one, $two) = (1, 2);
|
---|
4195 |
|
---|
4196 | Another common error is to use ordinary parentheses to construct a list
|
---|
4197 | reference when you should be using square or curly brackets, for
|
---|
4198 | example, if you say
|
---|
4199 |
|
---|
4200 | $array = (1,2);
|
---|
4201 |
|
---|
4202 | when you should have said
|
---|
4203 |
|
---|
4204 | $array = [1,2];
|
---|
4205 |
|
---|
4206 | The square brackets explicitly turn a list value into a scalar value,
|
---|
4207 | while parentheses do not. So when a parenthesized list is evaluated in
|
---|
4208 | a scalar context, the comma is treated like C's comma operator, which
|
---|
4209 | throws away the left argument, which is not what you want. See
|
---|
4210 | L<perlref> for more on this.
|
---|
4211 |
|
---|
4212 | This warning will not be issued for numerical constants equal to 0 or 1
|
---|
4213 | since they are often used in statements like
|
---|
4214 |
|
---|
4215 | 1 while sub_with_side_effects();
|
---|
4216 |
|
---|
4217 | String constants that would normally evaluate to 0 or 1 are warned
|
---|
4218 | about.
|
---|
4219 |
|
---|
4220 | =item Useless use of "re" pragma
|
---|
4221 |
|
---|
4222 | (W) You did C<use re;> without any arguments. That isn't very useful.
|
---|
4223 |
|
---|
4224 | =item Useless use of sort in scalar context
|
---|
4225 |
|
---|
4226 | (W void) You used sort in scalar context, as in :
|
---|
4227 |
|
---|
4228 | my $x = sort @y;
|
---|
4229 |
|
---|
4230 | This is not very useful, and perl currently optimizes this away.
|
---|
4231 |
|
---|
4232 | =item Useless use of %s with no values
|
---|
4233 |
|
---|
4234 | (W syntax) You used the push() or unshift() function with no arguments
|
---|
4235 | apart from the array, like C<push(@x)> or C<unshift(@foo)>. That won't
|
---|
4236 | usually have any effect on the array, so is completely useless. It's
|
---|
4237 | possible in principle that push(@tied_array) could have some effect
|
---|
4238 | if the array is tied to a class which implements a PUSH method. If so,
|
---|
4239 | you can write it as C<push(@tied_array,())> to avoid this warning.
|
---|
4240 |
|
---|
4241 | =item "use" not allowed in expression
|
---|
4242 |
|
---|
4243 | (F) The "use" keyword is recognized and executed at compile time, and
|
---|
4244 | returns no useful value. See L<perlmod>.
|
---|
4245 |
|
---|
4246 | =item Use of bare << to mean <<"" is deprecated
|
---|
4247 |
|
---|
4248 | (D deprecated) You are now encouraged to use the explicitly quoted form
|
---|
4249 | if you wish to use an empty line as the terminator of the here-document.
|
---|
4250 |
|
---|
4251 | =item Use of chdir('') or chdir(undef) as chdir() deprecated
|
---|
4252 |
|
---|
4253 | (D deprecated) chdir() with no arguments is documented to change to
|
---|
4254 | $ENV{HOME} or $ENV{LOGDIR}. chdir(undef) and chdir('') share this
|
---|
4255 | behavior, but that has been deprecated. In future versions they
|
---|
4256 | will simply fail.
|
---|
4257 |
|
---|
4258 | Be careful to check that what you pass to chdir() is defined and not
|
---|
4259 | blank, else you might find yourself in your home directory.
|
---|
4260 |
|
---|
4261 | =item Use of /c modifier is meaningless in s///
|
---|
4262 |
|
---|
4263 | (W regexp) You used the /c modifier in a substitution. The /c
|
---|
4264 | modifier is not presently meaningful in substitutions.
|
---|
4265 |
|
---|
4266 | =item Use of /c modifier is meaningless without /g
|
---|
4267 |
|
---|
4268 | (W regexp) You used the /c modifier with a regex operand, but didn't
|
---|
4269 | use the /g modifier. Currently, /c is meaningful only when /g is
|
---|
4270 | used. (This may change in the future.)
|
---|
4271 |
|
---|
4272 | =item Use of freed value in iteration
|
---|
4273 |
|
---|
4274 | (F) Perhaps you modified the iterated array within the loop?
|
---|
4275 | This error is typically caused by code like the following:
|
---|
4276 |
|
---|
4277 | @a = (3,4);
|
---|
4278 | @a = () for (1,2,@a);
|
---|
4279 |
|
---|
4280 | You are not supposed to modify arrays while they are being iterated over.
|
---|
4281 | For speed and efficiency reasons, Perl internally does not do full
|
---|
4282 | reference-counting of iterated items, hence deleting such an item in the
|
---|
4283 | middle of an iteration causes Perl to see a freed value.
|
---|
4284 |
|
---|
4285 | =item Use of *glob{FILEHANDLE} is deprecated
|
---|
4286 |
|
---|
4287 | (D deprecated) You are now encouraged to use the shorter *glob{IO} form
|
---|
4288 | to access the filehandle slot within a typeglob.
|
---|
4289 |
|
---|
4290 | =item Use of /g modifier is meaningless in split
|
---|
4291 |
|
---|
4292 | (W regexp) You used the /g modifier on the pattern for a C<split>
|
---|
4293 | operator. Since C<split> always tries to match the pattern
|
---|
4294 | repeatedly, the C</g> has no effect.
|
---|
4295 |
|
---|
4296 | =item Use of implicit split to @_ is deprecated
|
---|
4297 |
|
---|
4298 | (D deprecated) It makes a lot of work for the compiler when you clobber
|
---|
4299 | a subroutine's argument list, so it's better if you assign the results
|
---|
4300 | of a split() explicitly to an array (or list).
|
---|
4301 |
|
---|
4302 | =item Use of inherited AUTOLOAD for non-method %s() is deprecated
|
---|
4303 |
|
---|
4304 | (D deprecated) As an (ahem) accidental feature, C<AUTOLOAD> subroutines
|
---|
4305 | are looked up as methods (using the C<@ISA> hierarchy) even when the
|
---|
4306 | subroutines to be autoloaded were called as plain functions (e.g.
|
---|
4307 | C<Foo::bar()>), not as methods (e.g. C<< Foo->bar() >> or C<<
|
---|
4308 | $obj->bar() >>).
|
---|
4309 |
|
---|
4310 | This bug will be rectified in future by using method lookup only for
|
---|
4311 | methods' C<AUTOLOAD>s. However, there is a significant base of existing
|
---|
4312 | code that may be using the old behavior. So, as an interim step, Perl
|
---|
4313 | currently issues an optional warning when non-methods use inherited
|
---|
4314 | C<AUTOLOAD>s.
|
---|
4315 |
|
---|
4316 | The simple rule is: Inheritance will not work when autoloading
|
---|
4317 | non-methods. The simple fix for old code is: In any module that used
|
---|
4318 | to depend on inheriting C<AUTOLOAD> for non-methods from a base class
|
---|
4319 | named C<BaseClass>, execute C<*AUTOLOAD = \&BaseClass::AUTOLOAD> during
|
---|
4320 | startup.
|
---|
4321 |
|
---|
4322 | In code that currently says C<use AutoLoader; @ISA = qw(AutoLoader);>
|
---|
4323 | you should remove AutoLoader from @ISA and change C<use AutoLoader;> to
|
---|
4324 | C<use AutoLoader 'AUTOLOAD';>.
|
---|
4325 |
|
---|
4326 | =item Use of %s in printf format not supported
|
---|
4327 |
|
---|
4328 | (F) You attempted to use a feature of printf that is accessible from
|
---|
4329 | only C. This usually means there's a better way to do it in Perl.
|
---|
4330 |
|
---|
4331 | =item Use of $* is deprecated
|
---|
4332 |
|
---|
4333 | (D deprecated) This variable magically turned on multi-line pattern
|
---|
4334 | matching, both for you and for any luckless subroutine that you happen
|
---|
4335 | to call. You should use the new C<//m> and C<//s> modifiers now to do
|
---|
4336 | that without the dangerous action-at-a-distance effects of C<$*>.
|
---|
4337 |
|
---|
4338 | =item Use of $# is deprecated
|
---|
4339 |
|
---|
4340 | (D deprecated) This was an ill-advised attempt to emulate a poorly
|
---|
4341 | defined B<awk> feature. Use an explicit printf() or sprintf() instead.
|
---|
4342 |
|
---|
4343 | =item Use of %s is deprecated
|
---|
4344 |
|
---|
4345 | (D deprecated) The construct indicated is no longer recommended for use,
|
---|
4346 | generally because there's a better way to do it, and also because the
|
---|
4347 | old way has bad side effects.
|
---|
4348 |
|
---|
4349 | =item Use of -l on filehandle %s
|
---|
4350 |
|
---|
4351 | (W io) A filehandle represents an opened file, and when you opened the file
|
---|
4352 | it already went past any symlink you are presumably trying to look for.
|
---|
4353 | The operation returned C<undef>. Use a filename instead.
|
---|
4354 |
|
---|
4355 | =item Use of "package" with no arguments is deprecated
|
---|
4356 |
|
---|
4357 | (D deprecated) You used the C<package> keyword without specifying a package
|
---|
4358 | name. So no namespace is current at all. Using this can cause many
|
---|
4359 | otherwise reasonable constructs to fail in baffling ways. C<use strict;>
|
---|
4360 | instead.
|
---|
4361 |
|
---|
4362 | =item Use of reference "%s" as array index
|
---|
4363 |
|
---|
4364 | (W misc) You tried to use a reference as an array index; this probably
|
---|
4365 | isn't what you mean, because references in numerical context tend
|
---|
4366 | to be huge numbers, and so usually indicates programmer error.
|
---|
4367 |
|
---|
4368 | If you really do mean it, explicitly numify your reference, like so:
|
---|
4369 | C<$array[0+$ref]>. This warning is not given for overloaded objects,
|
---|
4370 | either, because you can overload the numification and stringification
|
---|
4371 | operators and then you assumedly know what you are doing.
|
---|
4372 |
|
---|
4373 | =item Use of reserved word "%s" is deprecated
|
---|
4374 |
|
---|
4375 | (D deprecated) The indicated bareword is a reserved word. Future
|
---|
4376 | versions of perl may use it as a keyword, so you're better off either
|
---|
4377 | explicitly quoting the word in a manner appropriate for its context of
|
---|
4378 | use, or using a different name altogether. The warning can be
|
---|
4379 | suppressed for subroutine names by either adding a C<&> prefix, or using
|
---|
4380 | a package qualifier, e.g. C<&our()>, or C<Foo::our()>.
|
---|
4381 |
|
---|
4382 | =item Use of tainted arguments in %s is deprecated
|
---|
4383 |
|
---|
4384 | (W taint, deprecated) You have supplied C<system()> or C<exec()> with multiple
|
---|
4385 | arguments and at least one of them is tainted. This used to be allowed
|
---|
4386 | but will become a fatal error in a future version of perl. Untaint your
|
---|
4387 | arguments. See L<perlsec>.
|
---|
4388 |
|
---|
4389 | =item Use of uninitialized value%s
|
---|
4390 |
|
---|
4391 | (W uninitialized) An undefined value was used as if it were already
|
---|
4392 | defined. It was interpreted as a "" or a 0, but maybe it was a mistake.
|
---|
4393 | To suppress this warning assign a defined value to your variables.
|
---|
4394 |
|
---|
4395 | To help you figure out what was undefined, perl tells you what operation
|
---|
4396 | you used the undefined value in. Note, however, that perl optimizes your
|
---|
4397 | program and the operation displayed in the warning may not necessarily
|
---|
4398 | appear literally in your program. For example, C<"that $foo"> is
|
---|
4399 | usually optimized into C<"that " . $foo>, and the warning will refer to
|
---|
4400 | the C<concatenation (.)> operator, even though there is no C<.> in your
|
---|
4401 | program.
|
---|
4402 |
|
---|
4403 | =item Using a hash as a reference is deprecated
|
---|
4404 |
|
---|
4405 | (D deprecated) You tried to use a hash as a reference, as in
|
---|
4406 | C<< %foo->{"bar"} >> or C<< %$ref->{"hello"} >>. Versions of perl <= 5.6.1
|
---|
4407 | used to allow this syntax, but shouldn't have. It is now deprecated, and will
|
---|
4408 | be removed in a future version.
|
---|
4409 |
|
---|
4410 | =item Using an array as a reference is deprecated
|
---|
4411 |
|
---|
4412 | (D deprecated) You tried to use an array as a reference, as in
|
---|
4413 | C<< @foo->[23] >> or C<< @$ref->[99] >>. Versions of perl <= 5.6.1 used to
|
---|
4414 | allow this syntax, but shouldn't have. It is now deprecated, and will be
|
---|
4415 | removed in a future version.
|
---|
4416 |
|
---|
4417 | =item UTF-16 surrogate %s
|
---|
4418 |
|
---|
4419 | (W utf8) You tried to generate half of an UTF-16 surrogate by
|
---|
4420 | requesting a Unicode character between the code points 0xD800 and
|
---|
4421 | 0xDFFF (inclusive). That range is reserved exclusively for the use of
|
---|
4422 | UTF-16 encoding (by having two 16-bit UCS-2 characters); but Perl
|
---|
4423 | encodes its characters in UTF-8, so what you got is a very illegal
|
---|
4424 | character. If you really know what you are doing you can turn off
|
---|
4425 | this warning by C<no warnings 'utf8';>.
|
---|
4426 |
|
---|
4427 | =item Value of %s can be "0"; test with defined()
|
---|
4428 |
|
---|
4429 | (W misc) In a conditional expression, you used <HANDLE>, <*> (glob),
|
---|
4430 | C<each()>, or C<readdir()> as a boolean value. Each of these constructs
|
---|
4431 | can return a value of "0"; that would make the conditional expression
|
---|
4432 | false, which is probably not what you intended. When using these
|
---|
4433 | constructs in conditional expressions, test their values with the
|
---|
4434 | C<defined> operator.
|
---|
4435 |
|
---|
4436 | =item Value of CLI symbol "%s" too long
|
---|
4437 |
|
---|
4438 | (W misc) A warning peculiar to VMS. Perl tried to read the value of an
|
---|
4439 | %ENV element from a CLI symbol table, and found a resultant string
|
---|
4440 | longer than 1024 characters. The return value has been truncated to
|
---|
4441 | 1024 characters.
|
---|
4442 |
|
---|
4443 | =item Variable "%s" is not imported%s
|
---|
4444 |
|
---|
4445 | (F) While "use strict" in effect, you referred to a global variable that
|
---|
4446 | you apparently thought was imported from another module, because
|
---|
4447 | something else of the same name (usually a subroutine) is exported by
|
---|
4448 | that module. It usually means you put the wrong funny character on the
|
---|
4449 | front of your variable.
|
---|
4450 |
|
---|
4451 | =item Variable length lookbehind not implemented in regex; marked by <-- HERE in m/%s/
|
---|
4452 |
|
---|
4453 | (F) Lookbehind is allowed only for subexpressions whose length is fixed and
|
---|
4454 | known at compile time. The <-- HERE shows in the regular expression about
|
---|
4455 | where the problem was discovered. See L<perlre>.
|
---|
4456 |
|
---|
4457 | =item "%s" variable %s masks earlier declaration in same %s
|
---|
4458 |
|
---|
4459 | (W misc) A "my" or "our" variable has been redeclared in the current
|
---|
4460 | scope or statement, effectively eliminating all access to the previous
|
---|
4461 | instance. This is almost always a typographical error. Note that the
|
---|
4462 | earlier variable will still exist until the end of the scope or until
|
---|
4463 | all closure referents to it are destroyed.
|
---|
4464 |
|
---|
4465 | =item Variable "%s" may be unavailable
|
---|
4466 |
|
---|
4467 | (W closure) An inner (nested) I<anonymous> subroutine is inside a
|
---|
4468 | I<named> subroutine, and outside that is another subroutine; and the
|
---|
4469 | anonymous (innermost) subroutine is referencing a lexical variable
|
---|
4470 | defined in the outermost subroutine. For example:
|
---|
4471 |
|
---|
4472 | sub outermost { my $a; sub middle { sub { $a } } }
|
---|
4473 |
|
---|
4474 | If the anonymous subroutine is called or referenced (directly or
|
---|
4475 | indirectly) from the outermost subroutine, it will share the variable as
|
---|
4476 | you would expect. But if the anonymous subroutine is called or
|
---|
4477 | referenced when the outermost subroutine is not active, it will see the
|
---|
4478 | value of the shared variable as it was before and during the *first*
|
---|
4479 | call to the outermost subroutine, which is probably not what you want.
|
---|
4480 |
|
---|
4481 | In these circumstances, it is usually best to make the middle subroutine
|
---|
4482 | anonymous, using the C<sub {}> syntax. Perl has specific support for
|
---|
4483 | shared variables in nested anonymous subroutines; a named subroutine in
|
---|
4484 | between interferes with this feature.
|
---|
4485 |
|
---|
4486 | =item Variable syntax
|
---|
4487 |
|
---|
4488 | (A) You've accidentally run your script through B<csh> instead
|
---|
4489 | of Perl. Check the #! line, or manually feed your script into
|
---|
4490 | Perl yourself.
|
---|
4491 |
|
---|
4492 | =item Variable "%s" will not stay shared
|
---|
4493 |
|
---|
4494 | (W closure) An inner (nested) I<named> subroutine is referencing a
|
---|
4495 | lexical variable defined in an outer subroutine.
|
---|
4496 |
|
---|
4497 | When the inner subroutine is called, it will probably see the value of
|
---|
4498 | the outer subroutine's variable as it was before and during the *first*
|
---|
4499 | call to the outer subroutine; in this case, after the first call to the
|
---|
4500 | outer subroutine is complete, the inner and outer subroutines will no
|
---|
4501 | longer share a common value for the variable. In other words, the
|
---|
4502 | variable will no longer be shared.
|
---|
4503 |
|
---|
4504 | Furthermore, if the outer subroutine is anonymous and references a
|
---|
4505 | lexical variable outside itself, then the outer and inner subroutines
|
---|
4506 | will I<never> share the given variable.
|
---|
4507 |
|
---|
4508 | This problem can usually be solved by making the inner subroutine
|
---|
4509 | anonymous, using the C<sub {}> syntax. When inner anonymous subs that
|
---|
4510 | reference variables in outer subroutines are called or referenced, they
|
---|
4511 | are automatically rebound to the current values of such variables.
|
---|
4512 |
|
---|
4513 | =item Version number must be a constant number
|
---|
4514 |
|
---|
4515 | (P) The attempt to translate a C<use Module n.n LIST> statement into
|
---|
4516 | its equivalent C<BEGIN> block found an internal inconsistency with
|
---|
4517 | the version number.
|
---|
4518 |
|
---|
4519 | =item Warning: something's wrong
|
---|
4520 |
|
---|
4521 | (W) You passed warn() an empty string (the equivalent of C<warn "">) or
|
---|
4522 | you called it with no args and C<$_> was empty.
|
---|
4523 |
|
---|
4524 | =item Warning: unable to close filehandle %s properly
|
---|
4525 |
|
---|
4526 | (S) The implicit close() done by an open() got an error indication on
|
---|
4527 | the close(). This usually indicates your file system ran out of disk
|
---|
4528 | space.
|
---|
4529 |
|
---|
4530 | =item Warning: Use of "%s" without parentheses is ambiguous
|
---|
4531 |
|
---|
4532 | (S ambiguous) You wrote a unary operator followed by something that
|
---|
4533 | looks like a binary operator that could also have been interpreted as a
|
---|
4534 | term or unary operator. For instance, if you know that the rand
|
---|
4535 | function has a default argument of 1.0, and you write
|
---|
4536 |
|
---|
4537 | rand + 5;
|
---|
4538 |
|
---|
4539 | you may THINK you wrote the same thing as
|
---|
4540 |
|
---|
4541 | rand() + 5;
|
---|
4542 |
|
---|
4543 | but in actual fact, you got
|
---|
4544 |
|
---|
4545 | rand(+5);
|
---|
4546 |
|
---|
4547 | So put in parentheses to say what you really mean.
|
---|
4548 |
|
---|
4549 | =item Wide character in %s
|
---|
4550 |
|
---|
4551 | (W utf8) Perl met a wide character (>255) when it wasn't expecting
|
---|
4552 | one. This warning is by default on for I/O (like print). The easiest
|
---|
4553 | way to quiet this warning is simply to add the C<:utf8> layer to the
|
---|
4554 | output, e.g. C<binmode STDOUT, ':utf8'>. Another way to turn off the
|
---|
4555 | warning is to add C<no warnings 'utf8';> but that is often closer to
|
---|
4556 | cheating. In general, you are supposed to explicitly mark the
|
---|
4557 | filehandle with an encoding, see L<open> and L<perlfunc/binmode>.
|
---|
4558 |
|
---|
4559 | =item Within []-length '%c' not allowed
|
---|
4560 |
|
---|
4561 | (F) The count in the (un)pack template may be replaced by C<[TEMPLATE]> only if
|
---|
4562 | C<TEMPLATE> always matches the same amount of packed bytes that can be
|
---|
4563 | determined from the template alone. This is not possible if it contains an
|
---|
4564 | of the codes @, /, U, u, w or a *-length. Redesign the template.
|
---|
4565 |
|
---|
4566 | =item write() on closed filehandle %s
|
---|
4567 |
|
---|
4568 | (W closed) The filehandle you're writing to got itself closed sometime
|
---|
4569 | before now. Check your control flow.
|
---|
4570 |
|
---|
4571 | =item %s "\x%s" does not map to Unicode
|
---|
4572 |
|
---|
4573 | When reading in different encodings Perl tries to map everything
|
---|
4574 | into Unicode characters. The bytes you read in are not legal in
|
---|
4575 | this encoding, for example
|
---|
4576 |
|
---|
4577 | utf8 "\xE4" does not map to Unicode
|
---|
4578 |
|
---|
4579 | if you try to read in the a-diaereses Latin-1 as UTF-8.
|
---|
4580 |
|
---|
4581 | =item 'X' outside of string
|
---|
4582 |
|
---|
4583 | (F) You had a (un)pack template that specified a relative position before
|
---|
4584 | the beginning of the string being (un)packed. See L<perlfunc/pack>.
|
---|
4585 |
|
---|
4586 | =item 'x' outside of string in unpack
|
---|
4587 |
|
---|
4588 | (F) You had a pack template that specified a relative position after
|
---|
4589 | the end of the string being unpacked. See L<perlfunc/pack>.
|
---|
4590 |
|
---|
4591 | =item YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!
|
---|
4592 |
|
---|
4593 | (F) And you probably never will, because you probably don't have the
|
---|
4594 | sources to your kernel, and your vendor probably doesn't give a rip
|
---|
4595 | about what you want. Your best bet is to put a setuid C wrapper around
|
---|
4596 | your script.
|
---|
4597 |
|
---|
4598 | =item You need to quote "%s"
|
---|
4599 |
|
---|
4600 | (W syntax) You assigned a bareword as a signal handler name.
|
---|
4601 | Unfortunately, you already have a subroutine of that name declared,
|
---|
4602 | which means that Perl 5 will try to call the subroutine when the
|
---|
4603 | assignment is executed, which is probably not what you want. (If it IS
|
---|
4604 | what you want, put an & in front.)
|
---|
4605 |
|
---|
4606 | =item Your random numbers are not that random
|
---|
4607 |
|
---|
4608 | (F) When trying to initialise the random seed for hashes, Perl could
|
---|
4609 | not get any randomness out of your system. This usually indicates
|
---|
4610 | Something Very Wrong.
|
---|
4611 |
|
---|
4612 | =back
|
---|
4613 |
|
---|
4614 | =cut
|
---|