Missing Method in HallController

Error: The action bnr_inEssence_570x140(特典バナー).png is not defined in controller HallController

Error: Create HallController::bnr_inEssence_570x140(特典バナー).png() in file: app/controllers/hall_controller.php.

<?php
class HallController extends AppController {

	var $name = 'Hall';


	function bnr_inEssence_570x140(特典バナー).png() {

	}

}
?>

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