Missing Controller

Error: 01-khoi-nguon-nhan-trac-hocController could not be found.

Error: Create the class 01-khoi-nguon-nhan-trac-hocController below in file: app/controllers/01-khoi-nguon-nhan-trac-hoc_controller.php

<?php
class 01-khoi-nguon-nhan-trac-hocController extends AppController {

	var $name = '01-khoi-nguon-nhan-trac-hoc';
}
?>

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