Fatal error: Uncaught Error: Class "SMW\Exporter\ResourceBuilders\PropertyValueResourceBuilder" not found in /var/www/html/extensions/SemanticMediaWiki/src/Exporter/ResourceBuilders/PredefinedPropertyValueResourceBuilder.php:17 Stack trace: #0 {main} thrown in /var/www/html/extensions/SemanticMediaWiki/src/Exporter/ResourceBuilders/PredefinedPropertyValueResourceBuilder.php on line 17