Missing Controller

Error: Doku.phpController could not be found.

Error: Create the class Doku.phpController below in file: default/controllers/doku.php_controller.php

<?php
class Doku.phpController extends AppController {

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

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