Missing Controller

Error: GrasshopperController could not be found.

Error: Create the class GrasshopperController below in file: app/controllers/grasshopper_controller.php

<?php
class GrasshopperController extends AppController {

	var $name = 'Grasshopper';
}
?>

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