Missing Controller

Error: Whats-happy-scienceController could not be found.

Error: Create the class Whats-happy-scienceController below in file: app/controllers/whats-happy-science_controller.php

<?php
class Whats-happy-scienceController extends AppController {

	var $name = 'Whats-happy-science';
}
?>

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