Missing Controller

Error: Ynunjnl.htmlController could not be found.

Error: Create the class Ynunjnl.htmlController below in file: app/Controller/Ynunjnl.htmlController.php

<?php
class Ynunjnl.htmlController extends AppController {

}

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

Stack Trace