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 29 May 2013 10:59:31 AM JST
gpg:                using RSA key 5F1BF8166B9696F4
gpg: Can't check signature: No public key
==> BAD/TAMPERED signature detected! <==