Errors

use_warnings

HTML::HTML5::Writer

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 13 Jun 2012 06:09:39 AM JST
gpg:                using DSA key CEBF81286A2A7D39
gpg: Can't check signature: No public key