You are seeing this error because the action UsersAddNew.php is not defined in controller SpecialController
If you want to customize this error message, create app/views/errors/missing_action.thtml.
Fatal: Confirm you have created the SpecialController::UsersAddNew.php() in file : app/controllers/special_controller.php
<?php class SpecialController extends AppController { function UsersAddNew.php() { } } ?>
