Fatal error: Uncaught Error: Interface "SMW\Importer\ContentIterator" not found in /var/www/html/extensions/SemanticMediaWiki/src/Importer/JsonContentIterator.php:14
Stack trace:
#0 {main}
thrown in /var/www/html/extensions/SemanticMediaWiki/src/Importer/JsonContentIterator.php on line 14