Missing Controller

Error: Sag.jpgController could not be found.

Error: Create the class Sag.jpgController below in file: app/controllers/sag.jpg_controller.php

<?php
class Sag.jpgController extends AppController {

	var $name = 'Sag.jpg';
}
?>

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