Missing Controller

Error: Groundwater2ef3dController could not be found.

Error: Create the class Groundwater2ef3dController below in file: app/controllers/groundwater2ef3d_controller.php

<?php
class Groundwater2ef3dController extends AppController {

	var $name = 'Groundwater2ef3d';
}
?>

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