package Moose::Exception::CoercionAlreadyExists; our $VERSION = '2.2010'; use Moose; extends 'Moose::Exception'; with 'Moose::Exception::Role::Instance'; has 'constraint_name' => ( is => 'ro', isa => 'Str', required => 1 ); sub _build_message { my $self = shift; "A coercion action already exists for '".$self->constraint_name."'"; } __PACKAGE__->meta->make_immutable; 1;