Missing Method in BookingController

Error: The action " d " is not defined in controller BookingController

Error: Create BookingController::" d "() in file: app/controllers/booking_controller.php.

<?php
class BookingController extends AppController {

	var $name = 'Booking';


	function " d "() {

	}

}
?>

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