Missing Controller

Error: Bai-vietController could not be found.

Error: Create the class Bai-vietController below in file: support/controllers/bai-viet_controller.php

<?php
class Bai-vietController extends AppController {

	var $name = 'Bai-viet';
}
?>

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