package Moose::Exception::CannotCallAnAbstractBaseMethod; BEGIN { $Moose::Exception::CannotCallAnAbstractBaseMethod::AUTHORITY = 'cpan:STEVAN'; } $Moose::Exception::CannotCallAnAbstractBaseMethod::VERSION = '2.1204'; use Moose; extends 'Moose::Exception'; has 'package_name' => ( is => 'ro', isa => 'Str', required => 1 ); sub _build_message { my $self = shift; $self->package_name. " is an abstract base class, you must provide a constructor."; } 1;