Missing Controller

Error: KnowHowController could not be found.

Error: Create the class KnowHowController below in file: app/controllers/know_how_controller.php

<?php
class KnowHowController extends AppController {

	var $name = 'KnowHow';
}
?>

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