Missing Controller

Error: Ctra1dController could not be found.

Error: Create the class Ctra1dController below in file: app/controllers/ctra1d_controller.php

<?php
class Ctra1dController extends AppController {

	var $name = 'Ctra1d';
}
?>

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