Missing Controller

Error: AltEn.gifController could not be found.

Error: Create the class AltEn.gifController below in file: app/controllers/alt_en.gif_controller.php

<?php
class AltEn.gifController extends AppController {

	var $name = 'AltEn.gif';
}
?>

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