gistfile1.pl

package Hoge;

use Data::Dumper;

use Mouse;
use MouseX::Types::Mouse qw/ ArrayRef Str /;

has hoge => (
    is  => 'rw',
    isa => ArrayRef[Str],  # -- Syntax Error
);

no Mouse;
__PACKAGE__->meta->make_immutable;


sub run
{
    print Dumper shift->hoge, "\n";
}

1;
__END__