package MyError::SomeError.pm;

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

1;

##</code><code>##

#!/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";
};

##</code><code>##

Can't locate MyErrors/SomeError.pm in @INC (@INC contains: /usr/lib/perl5/5.8.0/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-linux-thread-multi /usr/lib/perl5/vendor_perl/5.8.0 /usr/lib/perl5/vendor_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.