Missing Controller

Error: Sys.htmlController could not be found.

Error: Create the class Sys.htmlController below in file: app_media/controllers/sys.html_controller.php

<?php
class Sys.htmlController extends AppController {

	var $name = 'Sys.html';
}
?>

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