Missing Method in TtgMapsGuidesPublishingController

Error: The action singapore_river_map is not defined in controller TtgMapsGuidesPublishingController

Error: Create TtgMapsGuidesPublishingController::singapore_river_map() in file: app/controllers/ttg_maps_guides_publishing_controller.php.

<?php
class TtgMapsGuidesPublishingController extends AppController {

	var $name = 'TtgMapsGuidesPublishing';


	function singapore_river_map() {

	}

}
?>

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