Errors

use_warnings

constant::defer

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 20 Feb 2015 04:35:40 PM JST
gpg:                using DSA key 2C5302215F6ADD3A
gpg: Can't check signature: No public key
==> BAD/TAMPERED signature detected! <==