Missing Controller

Error: ZenkokuController could not be found.

Error: Create the class ZenkokuController below in file: ita-b.com/controllers/zenkoku_controller.php

<?php
class ZenkokuController extends AppController {

	var $name = 'Zenkoku';
}
?>

Notice: If you want to customize this error message, create ita-b.com/views/errors/missing_controller.ctp