Fatal error: Uncaught Error: Interface "ilCtrlBaseClassInterface" not found in /var/www/html/ilias/components/ILIAS/UICore/tests/Data/GUI/class.ilCtrlBaseClass2TestGUI.php:28 Stack trace: #0 {main} thrown in /var/www/html/ilias/components/ILIAS/UICore/tests/Data/GUI/class.ilCtrlBaseClass2TestGUI.php on line 28