Errors

use_warnings

Image::Base::Tk::Canvas, Image::Base::Tk::Photo

valid_signature

Old SIGNATURE detected. Please inform the module author to regenerate SIGNATURE using Module::Signature version 0.82 or newer.
gpg: Signature made Wed 10 Aug 2011 09:24:03 AM JST
gpg:                using DSA key 2C5302215F6ADD3A
gpg: Can't check signature: No public key
==> BAD/TAMPERED signature detected! <==