Missing Controller

Error: Dung-dich-nh4ohController could not be found.

Error: Create the class Dung-dich-nh4ohController below in file: app/controllers/dung-dich-nh4oh_controller.php

<?php
class Dung-dich-nh4ohController extends AppController {

	var $name = 'Dung-dich-nh4oh';
}
?>

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