禅道升级报错已解决悬赏5积分

访问：

http://127.0.0.1/zentao/upgrade.php

报错详情

10:22:37 Uncaught exception 'PDOException' with message 'SQLSTATE[HY000]: General error: 1017 Can't find file: 'zt_config' (errno: 2)' in C:\xampp\zentao\framework\router.class.php:45

Stack trace:
#0 C:\xampp\zentao\framework\router.class.php(45): PDO->query('SELECT value FR...')
#1 C:\xampp\zentao\framework\base\router.class.php(374): router->loadLang('common')
#2 C:\xampp\zentao\framework\base\router.class.php(392): baseRouter->__construct('pms', 'C:\xampp\zentao')
#3 C:\xampp\zentao\www\upgrade.php(48): baseRouter::createApp('pms', 'C:\xampp\zentao', 'router')
#4 {main}
thrown in C:\xampp\zentao\framework\router.class.php on line 45 when visiting