http://www.perlmonks.org?node_id=279112

jest has asked for the wisdom of the Perl Monks concerning the following question:

O monks,

I have a program that's throwing a large number of "Uninitialized value" errors. I've been very careful to always assign values like '' or whatever as defaults, wherever there's the opportunity to do so, but still they come.

The program in question involves a number of modules, so it's not that easy to figure out where things are happening, and the error in this case is the unhelpful "Uninitialized value in join or string at (eval 54) line 16". Is there any way to figure out exactly where this is? I don't have any eval's of my own.

I've looked over the archives but this particular question doesn't seem to have been covered. Thank you for any suggestions.