Errors

use_warnings

Image::Base::Prima::Drawable, Image::Base::Prima::Image

valid_signature

Old SIGNATURE detected. Please inform the module author to regenerate SIGNATURE using Module::Signature version 0.82 or newer.
gpg: Signature made Mon 22 Jun 2015 05:48:42 PM JST
gpg:                using DSA key 2C5302215F6ADD3A
gpg: Can't check signature: No public key
==> BAD/TAMPERED signature detected! <==