If that's the actual file then you need to change the use CART::Validate line to CART::Validate->import() e.g 
use strict;
use warnings;
use diagnostics;
use lib './lib';

## was: use CART::Validate
CART::Validate->import();

print qq(The module version is $CART::Validate::VERSION\n);
my $testing = testMod();
print qq(The return value from testMod is $testing\n);
exit;


# CART::Validate
package CART::Validate;
BEGIN {
    use Exporter;
    our( @ISA, @EXPORT, @EXPORT_OK, $VERSION );
    @ISA = qw( Exporter );
    @EXPORT = qw( &testMod );
    @EXPORT_OK = qw();
    $VERSION = 1.00;
}

sub testMod {
    return "HELLO!";
}
1;

__output__

The module version is 1
The return value from testMod is HELLO!

[download]
However you should really put everything below (and including) the line package CART::Validate into a file of it's own (i.e Cart/Validate.pm in one of the paths in @INC) and then your use statement will work fine.
HTH

_________
broquaint

In reply to Re: Trouble Exporting a Function by broquaint
in thread Trouble Exporting a Function by Rich36

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