Missing Controller

Error: GuestReviews.phpController could not be found.

Error: Create the class GuestReviews.phpController below in file: app/controllers/guest_reviews.php_controller.php

<?php
class GuestReviews.phpController extends AppController {

	var $name = 'GuestReviews.php';
}
?>

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