package Moose::Exception::CannotCallAnAbstractBaseMethod; our $VERSION = '2.2010'; 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."; } __PACKAGE__->meta->make_immutable; 1;