Errors

use_warnings

Oxford::Calendar

valid_signature

Old SIGNATURE detected. Please inform the module author to regenerate SIGNATURE using Module::Signature version 0.82 or newer.
gpg: Signature made Thu 27 Oct 2016 03:44:38 AM JST
gpg:                using RSA key C0057E714D694FB2
gpg: Can't check signature: No public key