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 08 Aug 2012 03:01:20 AM JST
gpg:                using DSA key 47404BE206D8C374
gpg: Can't check signature: No public key
==> BAD/TAMPERED signature detected! <==