Missing Controller

Error: Sngw.txtController could not be found.

Error: Create the class Sngw.txtController below in file: app\controllers\sngw.txt_controller.php

<?php
class Sngw.txtController extends AppController {

	var $name = 'Sngw.txt';
}
?>

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