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)

Answer 2

• Delete all files except config.xml from /app/code/core/Mage/GoogleCheckout/etc.

• Clear the cache.

Answer 3

Every of the answer so far seem dirty to me. Instead of crippeling the Mage_GoogleCheckout Module you should just deactivate it.

Following steps will result in deactivating the module and leaving the code intact:

1. go to app/etc/modules
2. edit Mage_All.xml
3. search for <Mage_GoogleCheckout>
4. place <!-- in front of <Mage_GoogleCheckout> and --> right after </Mage_GoogleCheckout>
5. save the file
6. if the problem still persists refresh cache (go back in your browser until you see the adminhtml again, go to system -> cache-management and click the two red buttons in the top right corner)

Answer 4

I agree the solution above works. However, I got this error myself after upgrading from Magento 1.7 to 1.8 simply by copying all the new files over the old Magento 1.7 filesystem. I fixed this (and perhaps other bugs waiting) by removing all contents of the app/code/core folder and copying all files from the fresh Magento 1.8 folder app/code/core/* (Mage and Zend) to the now empty folder. Same thing, different approach.

Answer 5

Go to the folder app/etc/modules/Mage_All.xml

Set false for module.

   <Mage_GoogleCheckout>
        <active>false</active>
        <codePool>core</codePool>
        <depends>
            <Mage_Sales/>
            <Mage_Payment/>
            <Mage_Usa/>
        </depends>
    </Mage_GoogleCheckout>

Answer 6

If you get this error it means you are on the right track.

Solution:

Close the Admin Panel browser window. 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 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.

The error you get was predicted and documented by the Magento core team. The solution I gave is from the Magento 1.8.1.0 release notes page