Fatal error: Uncaught Error: Interface "ILIAS\Setup\Migration" not found in /var/www/html/ilias/components/ILIAS/TestQuestionPool/classes/Setup/Migration/class.ilTestQuestionPoolFileUploadQuestionMigration.php:22 Stack trace: #0 {main} thrown in /var/www/html/ilias/components/ILIAS/TestQuestionPool/classes/Setup/Migration/class.ilTestQuestionPoolFileUploadQuestionMigration.php on line 22