Class 'Mage_Googlecheckout_Helper_Data' not found

Question

We\'ve just upgraded from Magento version 1.8.0.0 to 1.8.1.0 and now when we go to the configuration section of our site we receive the message:

Fatal error: Cla         


        

Answer 1

Please check the releasenotes:

1. Close the Admin Panel browser window.
2. As a user with root privileges, delete all files except config.xml from the following >directory: magento-install-dir/app/code/core/Mage/GoogleCheckout/etc
3. When you log back in to the Admin Panel, everything works as expected. If you're still encountering errors, see Getting Help With Your Installation or Upgrade.

-- Magento Community Edition (CE) Release Notes (1.8 and later)