Thread:Extension talk:Zend Search Lucene for MediaWiki/No search result./reply (23)

The error message means array wikisArray is not defined which should be happen in LuceneIndexerConfig. The second error is a side effect of the first. In line 29 auf LuceneIndexer try "echo require_once($folder."PslZendSearchLuceneIndexerConfig.php");". May be the include does not happen. You can see it if you dont get "1" as output.