# File lib/deltacloud.rb, line 412
    def handle_backend_error(response)
      response_xml = Nokogiri::XML(response)
      backtrace = (response_xml/'error/backtrace').empty? ? nil : (response_xml/'error/backtrace').text
      raise BackendError.new(:message => (response_xml/'error/message').text,
                             :code => response.code,
                             :backtrace => backtrace)
    end