Missing Controller

Error: SchDesign.htmlController could not be found.

Error: Create the class SchDesign.htmlController below in file: app/controllers/sch_design.html_controller.php

<?php
class SchDesign.htmlController extends AppController {

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

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