id,summary,reporter,owner,description,type,status,priority,milestone,component,severity,resolution,keywords,cc 225,server crash,anonymous,ak19,"in building I got this in creating CL3 buildcol.pl> Use of uninitialized value in subtraction (-) at C:\research\gs3.03\gs2build\perllib\classify\AZCompactList.pm line 738. and when clicking on an untitled shelf icon I crash the server: http://localhost:8080/greenstone3/library?a=b&rt=r&s=ClassifierBrowse&c=testoai2&cl=CL3.1 HTTP Status 500 - type Exception report message description The server encountered an internal error () that prevented it from fulfilling this request. exception java.lang.NullPointerException org.greenstone.gsdl3.util.GSXML.getChildByTagName(GSXML.java:426) org.greenstone.gsdl3.util.GSXML.getNodeByPath(GSXML.java:464) org.greenstone.gsdl3.action.GS2BrowseAction.classifierBrowse(GS2BrowseAction.java:178) org.greenstone.gsdl3.action.GS2BrowseAction.process(GS2BrowseAction.java:33) org.greenstone.gsdl3.core.Receptionist.process(Receptionist.java:197) org.greenstone.gsdl3.LibraryServlet.doGet(LibraryServlet.java:499) javax.servlet.http.HttpServlet.service(HttpServlet.java:690) javax.servlet.http.HttpServlet.service(HttpServlet.java:803) ",defect,closed,very high,3.04 Release,Greenstone3 Runtime,critical,fixed,,