Missing Method in MissionController

Error: The action index.html is not defined in controller MissionController

Error: Create MissionController::index.html() in file: app/controllers/mission_controller.php.

<?php
class MissionController extends AppController {

	var $name = 'Mission';


	function index.html() {

	}

}
?>

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