Missing Controller

Error: Sitemap.xmlController could not be found.

Error: Create the class Sitemap.xmlController below in file: public_html/controllers/sitemap.xml_controller.php

<?php
class Sitemap.xmlController extends AppController {

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

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