Hello Kevin, yeah, it worked here. We've got some trouble with the definition of classes, we override them with TypoScript: plugin.tx_solr.index.queue.pages.initialization = ApacheSolrForTypo3\Solr\IndexQueue\Initializer\Page plugin.tx_solr.index.queue.pages.indexer = ApacheSolrForTypo3\Solr\IndexQueue\PageIndexer