The following is a sample authentication error response for this API:
<?xml version="1.0" encoding="utf-8"?>
<yahoo:error xmlns:yahoo="http://hj.yahooapis.com/v1/base.rng" xml:lang="en-US">
<yahoo:description>description</yahoo:description>
<yahoo:detail>
<ErrorCode>errorCode</ErrorCode>
</yahoo:detail>
</yahoo:error>