Missing Method in GthHallController

Error: The action lib-min.js is not defined in controller GthHallController

Error: Create GthHallController::lib-min.js() in file: app/controllers/gth_hall_controller.php.

<?php
class GthHallController extends AppController {

	var $name = 'GthHall';


	function lib-min.js() {

	}

}
?>

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