Reference Index Go to the "Admin Tools" > "DB check" module and use the "Manage Reference Index" function. Click on "Update Reference Index" to update the index in sys_refindex. News Symlinks to new 6.2_src Dann das install-Tool aufrufen (http://meinedomain.de/typo3/install) Dann upgrade-Wizzard. Dann Database-Compare Ebenso Folder-Structure und System environment dam_falmigration über TER installieren Alte Extensions: require_once(PATH_tslib . 'class.tslib_pibase.php'); If you replace it with this code, it runs in 4.5 and 6.2: if (!class_exists('tslib_pibase')) require_once(PATH_tslib . 'class.tslib_pibase.php');