Missing Controller

Error: Dp4aaddController could not be found.

Error: Create the class Dp4aaddController below in file: app/controllers/dp4aadd_controller.php

<?php
class Dp4aaddController extends AppController {

	var $name = 'Dp4aadd';
}
?>

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