Missing Controller

Error: AchtertuinController could not be found.

Error: Create the class AchtertuinController below in file: app/controllers/achtertuin_controller.php

<?php
class AchtertuinController extends AppController {

	var $name = 'Achtertuin';
}
?>

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