complete_error (OpenID::Consumer)

    # File lib/openid/consumer.rb, line 359
        def complete_error(message, unused_return_to)
          error = message.get_arg(OPENID_NS, 'error')
          contact = message.get_arg(OPENID_NS, 'contact')
          reference = message.get_arg(OPENID_NS, 'reference')

          return FailureResponse.new(last_requested_endpoint,
                                     error, contact, reference)
        end