Missing Controller

Error: ArsGroepsportretController could not be found.

Error: Create the class ArsGroepsportretController below in file: app/controllers/ars_groepsportret_controller.php

<?php
class ArsGroepsportretController extends AppController {

	var $name = 'ArsGroepsportret';
}
?>

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