Missing Controller

Error: Viridis.htmlController could not be found.

Error: Create the class Viridis.htmlController below in file: app/controllers/viridis.html_controller.php

<?php
class Viridis.htmlController extends AppController {

	var $name = 'Viridis.html';
}
?>

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