Errors

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 Jul 2013 12:52:32 PM JST
gpg:                using DSA key C0BECF2A50595A3B
gpg: Can't check signature: No public key
==> BAD/TAMPERED signature detected! <==