package MyError::SomeError.pm;

use Error::Simple;   # the line that shouts
@ISA = qw(Error::Simple);

1;
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#!/usr/bin/perl -w

use Error qw(:try);
use MyError::SomeError;

try {
  throw MyError::SomeError('Throwing some error');
} catch MyError::SomeError with {
  print "Caught it\n";
};
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Can't locate MyErrors/SomeError.pm in @INC (@INC contains: /usr/lib/pe
+rl5/5.8.0/i386-linux-thread-multi /usr/lib/perl5/5.8.0 /usr/lib/perl5
+/site_perl/5.8.0/i386-linux-thread-multi /usr/lib/perl5/site_perl/5.8
+.0 /usr/lib/perl5/site_perl /usr/lib/perl5/vendor_perl/5.8.0/i386-lin
+ux-thread-multi /usr/lib/perl5/vendor_perl/5.8.0 /usr/lib/perl5/vendo
+r_perl /usr/lib/perl5/5.8.0/i386-linux-thread-multi /usr/lib/perl5/5.
+8.0) at MyError/SomeError.pm line3.
BEGIN failed--compilation aborted at MyError/SomeError.pm line3.
BEGIN failed--compilation aborted at ./test.pl line 4.
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Right, firstly, Error::Simple is not a module it is a package that is defined in the file Error.pm. So SomeError.pm should look like

package MyError::SomeError;

use Error;

@ISA = qw/ Error::Simple /;

1;
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Secondly, take a look at your error message - Can't locate MyErrors/SomeError.pm. Note the 's' after 'MyError', which would indicate that the code you're displaying isn't the exact code you're using.

Please see. perlmod and Error before going any further.
HTH

_________
broquaint

Try adding
use lib '/home/YOURNAME/Perl';
to the top of your script.

It didn't help, but thatnks anyway.

Hotshot