Fatal error: Uncaught Error: Class "MediaWiki\Maintenance\Maintenance" not found in /var/www/html/w/extensions/Wikibase/repo/maintenance/importFederatedPropertiesSampleData.php:19 Stack trace: #0 {main} thrown in /var/www/html/w/extensions/Wikibase/repo/maintenance/importFederatedPropertiesSampleData.php on line 19