Missing Controller

Error: MotherWithChildController could not be found.

Error: Create the class MotherWithChildController below in file: app/controllers/mother_with_child_controller.php

<?php
class MotherWithChildController extends AppController {

	var $name = 'MotherWithChild';
}
?>

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