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 Thu 13 Oct 2011 10:28:51 PM JST
gpg:                using DSA key 4DDF845A26880B0A
gpg: Can't check signature: No public key
==> BAD/TAMPERED signature detected! <==