Missing Method in StartController

Error: The action xpertbeilagen is not defined in controller StartController

Error: Create StartController::xpertbeilagen() in file: app/controllers/start_controller.php.

<?php
class StartController extends AppController {

	var $name = 'Start';


	function xpertbeilagen() {

	}

}
?>

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