我正在尝试在Localhost中安装实时Magento站点。我使用的是Windows 8和XAMPP。当我尝试安装该网站时，我遇到了错误。
Warning: simplexml_load_file(): I/O warning : failed to load external entity "" in D:\php\htdocs\magento\lib\Aitoc\Aitpagecache\Mainpage.php on line 597
Warning: simplexml_load_file(): I/O warning : failed to load external entity "" in D:\php\htdocs\magento\lib\Aitoc\Aitpagecache\Mainpage.php on line 597
Fatal error: Call to a member function getCode() on boolean in D:\php\htdocs\magento\app\code\core\Mage\Customer\Model\Session.php on line 71
有谁能说解决方案是什么？