Missing Controller

Error: OkinawaController could not be found.

Error: Create the class OkinawaController below in file: tanki.arbeit.jp/controllers/okinawa_controller.php

<?php
class OkinawaController extends AppController {

	var $name = 'Okinawa';
}
?>

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