Magento 1.9.2.2 upgrade to 1.9.2.4 fails via Connect Manager

Delete pkginfo/Mage_All_latest.txt and then from magento connect try to upgrade only mage_all_latest only.. It will upgrade everything successfully without any issues.

I did same and it worked.

Let me know if you need help.

I deleted pkginfo/Mage_All_latest.txt and then from Magento Connect, upgraded Mage_All_Latest to 1.9.2.4 and it upgraded everything successfully without any issues.