Warning: require_once(Zend/Search/Lucene/Index/SegmentInfo.php): failed to open stream: No such file or directory in /home/www/Zend/Search/Lucene/Index/SegmentMerger.php on line 24

Fatal error: require_once(): Failed opening required 'Zend/Search/Lucene/Index/SegmentInfo.php' (include_path='.:/etc/phpnet/php/54/lib/php') in /home/www/Zend/Search/Lucene/Index/SegmentMerger.php on line 24