Missing controller

You are seeing this error because controller Sitemap.xmlController could not be found.

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

Fatal: Create the class below in file: app/controllers/sitemap.xml_controller.php

<?php
class Sitemap.xmlController extends AppController {
   var $name = 'Sitemap.xml';
}
?>