Magento 1.9.1 Fatal error: Call to a member function isLockExists()

If you encountered the Fatal error: Call to a member function isLockExists() after trying re-index your Magento site, then don’t panic. It’s just a minor glitch after upgrading from 1.9.0.1 to 1.9.1. Just clear your cache then try re-indexing again. It will work afterwards. If your latest Magento site still doesn’t work, try logging out… Continue reading Magento 1.9.1 Fatal error: Call to a member function isLockExists()