Missing Controller

Error: BingSiteAuth.xmlController could not be found.

Error: Create the class BingSiteAuth.xmlController below in file: app/controllers/bing_site_auth.xml_controller.php

<?php
class BingSiteAuth.xmlController extends AppController {

	var $name = 'BingSiteAuth.xml';
}
?>

Notice: If you want to customize this error message, create app/views/errors/missing_controller.ctp