Compilation failed in require when using "use" in Perl

I suggest you check the module pmFile1.pm for errors in a terminal shell

$ perl -c pmFile1.pm
syntax error at pmFile1.pm line 1, near "."
pmFile1.pm had compilation errors.

When entering a single dot . as a syntax error into pmFile1.pm and running the p.pl file then the errors below are shown in Eclipse, the same as you described. If you run the .pl file in a terminal shell then you get the same compilation failed in require as in eclipse:

$ perl p.pl
syntax error at pmFile1.pm line 1, near "."
Compilation failed in require at p.pl line 1.
BEGIN failed--compilation aborted at p.pl line 1.

This may not be your problem, but I've been "bitten" by something similar before: check the End of Line chars in the file. It may be that your code is seen by the compiler to be all one line, making an error anywhere in the code appear as being on line 1 when visually (in the editor) the offending line would be later in the code. In notepad++ you resolve this sort of issue by using the Edit > EOL Conversion > Windows Format (or whatever format is correct for you) menu option, though other editors will likely have a similar feature for *NIX <-> Windows EOL conversions. This error would make sense if you can successfully use the module files giving you an error without errors in other script files.