<ErrorResponse xmlns="http://cloudformation.amazonaws.com/doc/2010-05-15/">
  <Error>
    <Type>Sender</Type>
    <Code>ValidationError</Code>
    <Message>Stack: foobar does not exist</Message>
  </Error>
  <RequestId>21113b58-b7e4-11e2-91fa-05ec834fa451</RequestId>
</ErrorResponse>
