I updated Magento to the latest version via Magento connect , it was success but after the update I get blank screen for admin and frontend.

When I put

if (isset($_SERVER['MAGE_IS_DEVELOPER_MODE']) || true) {

at my index.php

I get below error:

Fatal error: Class 'Mage' not found in how can i solve it please help i want urgent fix .

  • What happens when you copy all the new core files to your applications. Either via rsync or ftp? – brentwpeterson Mar 5 '15 at 13:17

Make sure the file app/Mage.php exists and that you have this in your index.php file

define('MAGENTO_ROOT', getcwd());
require_once $mageFilename;
  • thanks but why it happens when updated via magneto connect , – user1799722 Mar 5 '15 at 11:16

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