Missing Controller

Error: YwmltY1640Controller could not be found.

Error: Create the class YwmltY1640Controller below in file: app/controllers/ywmlt_y1640_controller.php

<?php
class YwmltY1640Controller extends AppController {

	var $name = 'YwmltY1640';
}
?>

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