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 17 Jul 2013 08:47:07 PM JST
gpg:                using RSA key 56C7CE291478089D
gpg: Can't check signature: No public key
==> BAD/TAMPERED signature detected! <==