I upgraded Magento CE 1.7.0.2 to 1.9 and when I try to go to System > Configuration it just loads up blank. I get the following errors in the system.log:
2015-03-13T19:27:52+00:00 ERR (3): Warning: include(Mage/Googlecheckout/Helper/Data.php): failed to open stream: No such file or directory in /chroot/home/path/to/html/lib/Varien/Autoload.php on line 94
2015-03-13T19:27:52+00:00 ERR (3): Warning: include(Mage/Googlecheckout/Helper/Data.php): failed to open stream: No such file or directory in /chroot/home/path/to/html/lib/Varien/Autoload.php on line 94
2015-03-13T19:27:52+00:00 ERR (3): Warning: include(): Failed opening 'Mage/Googlecheckout/Helper/Data.php' for inclusion (include_path='/chroot/home/path/to/html/app/code/local:/chroot/home/path/to/html/app/code/community:/chroot/home/carbonfi/restore.carbonfibergear.com/html/app/code/core:/chroot/home/path/to/html/lib:.:/usr/share/pear:/usr/share/php') in /chroot/home/path/to/html/lib/Varien/Autoload.php on line 94
Any ideas on what's causing the problem?
Best Answer
There is a known Issue After Upgrading to CE 1.8.1 that affects you only if you do not follow the recommended procedure to upgrade to a new environment as discussed in Getting Ready For Your Upgrade.
Symptom: After completing the upgrade, when you log in to the Admin Panel and click System > Configuration, a fatal error similar to the following displays in your browser:
Solution:
Close the Admin Panel browser window. As a user with root privileges, delete all files except config.xml from the following directory:
When you log back in to the Admin Panel, everything works as expected.