Missing Controller

Error: Atelierb2Controller could not be found.

Error: Create the class Atelierb2Controller below in file: app/controllers/atelierb2_controller.php

<?php
class Atelierb2Controller extends AppController {

	var $name = 'Atelierb2';
}
?>

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