in reply to PM module question/improvements

The error means it can't find the module files, that's all. If they exist they are installed; just tell perl where they live by adding to @INC or with lib and/or FindBin.

From the command line: 

perl -I/path/to/module/directory -MMyModule -E 'my $foo = MyModule->ne
+w; say $foo->bar;'

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In a script, if the script is in a directory and you know the module files are in a directory called `my_lib` at the same level: 

use FindBin qw($RealBin);
use lib "$RealBin/../my_lib";
use MyModule;

my $foo = MyModule->new;
say $foo->bar;
...

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The way forward always starts with a minimal test.

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Re^2: PM module question/improvements
by perlynewby (Scribe) on Nov 07, 2015 at 02:34 UTC

    quick follow up question, one error message went away but didn't quite worked by adding the path to the files using use lib "path"... as follows

    use lib "C:\Users/Lucca/Documents/NetBeansProjects/perlpm";

    this is the error message, why is it asking me to pointing to a different directory I implicitly set?

    Can't locate object method "class" via package "Da_corsa" (perhaps you
+ forgot to load "Da_corsa"?) at C:\Users\Lucca\Documents\NetBeansProj
+ects\PERL scripts\perl\MioDreamcar.pl line 17.

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    use warnings;
use Data::Dump qw(dump);
use lib "C:/Users/Lucca/Documents/NetBeansProjects/perlpm"; #initial e
+rror gone but other pop up.

#use lib "C:/Users/Lucca/Documents/NetBeansProjects"; #tried to follow
+ example syntax for this method but didn't work 
#use perlpm::Da_corsa; #adding the file this way...why is this method 
+wrong.

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    created a different dir to do all my testing of future PM's...so the permission are set correctly 

    $ ls -lrt perlpm/
total 3
-rwxrwxrwx+ 1 Lucca Lucca 288 Nov  6 17:58 Scuderia.pm
-rwxrwxrwx+ 1 Lucca Lucca 343 Nov  6 17:58 Dreamcar.pm
-rwxrwxrwx+ 1 Lucca Lucca 569 Nov  6 17:58 Da_corsa.pm

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[d/l]
[select]

      at C:\Users\Lucca\Documents\NetBeansProjects\PERL scripts\perl\MioDreamcar.pl line 17. is telling you the line and file where the error occured; in this case the error occurred when you tried to LOAD Da_corsa.

      The error message Can't locate object method "class" via package "Da_corsa" (perhaps you forgot to load "Da_corsa"?) is telling you that Perl still can't find a valid package of that name. The reason is probably that you are forgetting to return a true value at the end of your package, i.e. your module Da_corsa.pm should be like: 

      package Da_corsa;
use strict;
use warnings;

sub foo {
    return 'bar';
}

1; # return true

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      In your original post the other two packages return true but Da_corsa doesn't.

      Given the various comments and such in your latest example, once your module returns true, you might have success with: 

      use lib "C:/Users/Lucca/Documents/NetBeansProjects/perlpm";
use Da_corsa;

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      Hope this helps!

      The way forward always starts with a minimal test.
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[d/l]
[select]

        Another reason for this error, if your paths and @INC are right, could be that you are forgetting to return a true value at the end of your package, i.e. your module Da_corsa.pm should be like:

        Nope, perl catches that 

        $ echo package Shoo; sub foo { warn rand }; > Shoo.pm

$ perl -I. -MShoo -e Shoo::foo
Shoo.pm did not return a true value.
BEGIN failed--compilation aborted.

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        With the code he posted this new error isn't possible ... so he must not be running the code he posted

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[d/l]

        you're right!

        thanks for seeing this as my eyes were not catching this and never seen error message and resolve it

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