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 Fri 17 Apr 2015 10:56:55 PM JST
gpg:                using DSA key C289274496509C21
gpg: Can't check signature: No public key
==> BAD/TAMPERED signature detected! <==