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 Wed 31 Dec 2014 05:04:03 PM JST
gpg:                using RSA key 0C1AF9C7F874B05A
gpg: Can't check signature: No public key
==> BAD/TAMPERED signature detected! <==