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 22 Dec 2010 10:13:58 AM JST
gpg:                using DSA key 542C11C0EBD27418
gpg: Can't check signature: No public key
==> BAD/TAMPERED signature detected! <==