7.2: Errors in collection building

Sometimes something will go wrong during collection building. This may be one or more files weren't able to be processed: the rest of the collection builds fine, and can be previewed, but some of the documents are not in it. Or the whole collection is not built properly, in which case you will get a message saying "An error has occurred and the collection could not be created.". When this happens, it may be helpful to switch the GLI into expert mode (File->Preferences->Mode, see Preferences), set the build option "verbosity" to 5, and rebuild, to see if there are any error messages.