package Moose::Exception::IsaLacksDoesMethod; our $VERSION = '2.2010'; use Moose; extends 'Moose::Exception'; with 'Moose::Exception::Role::InvalidAttributeOptions'; sub _build_message { my $self = shift; "Cannot have an isa option which cannot ->does() on attribute (".$self->attribute_name.")"; } __PACKAGE__->meta->make_immutable; 1;