Magento 致命错误：类'；Varien#u自动加载&x27；找不到

在部署Magento站点期间，我收到以下警告和错误：-

Warning: include_once(Varien/Autoload.php): failed to open stream: No such file or directory in /home/xxx/subdomain/stage/app/Mage.php on line 50

Warning: include_once(): Failed opening 'Varien/Autoload.php' for inclusion (include_path='/home/xxx/subdomain/stage/app/code/local:/home/xxx/subdomain/stage/app/code/community:/home/xxx/subdomain/stage/app/code/core:/home/xxx/subdomain/stage/lib:.:/usr/lib/php:/usr/local/lib/php') in /home/xxx/subdomain/stage/app/Mage.php on line 50

Warning: include(Varien/Autoload.php): failed to open stream: No such file or directory in /home/xxx/subdomain/stage/app/code/core/Mage/Core/functions.php on line 68

Warning: include(): Failed opening 'Varien/Autoload.php' for inclusion (include_path='/home/xxx/subdomain/stage/app/code/local:/home/xxx/subdomain/stage/app/code/community:/home/xxx/subdomain/stage/app/code/core:/home/xxx/subdomain/stage/lib:.:/usr/lib/php:/usr/local/lib/php') in /home/xxx/subdomain/stage/app/code/core/Mage/Core/functions.php on line 68

Fatal error: Class 'Varien_Autoload' not found in /home/xxx/subdomain/stage/app/Mage.php on line 53

我已经将权限设置为777，并正确设置了

include\u路径

，includes中也有

lib

文件夹，但它不工作

请建议如何解决此错误。谢谢。

可能的副本