Missing Controller

Error: Carnivald4Controller could not be found.

Error: Create the class Carnivald4Controller below in file: app/controllers/carnivald4_controller.php

<?php
class Carnivald4Controller extends AppController {

	var $name = 'Carnivald4';
}
?>

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