I started to use Fedora with with Gnome 2x. I started to upgrade to gnome 3x when I had some eletric energy problem in my build and my machine turned off. Now I cannot log in any more - meggage "Oh No! Something has gone wrong. A problem has occured and the system can't recover. All extensions have been disabled"
If I try to run 'yum update' again there is two strange things
1) Error: Package: PackageKit-yum-plugin-0.8.17.1.fc20.x86_64 Required: Package(x86-64) = 0.8.17-1.fc20 Installed: PackageKit-0.8.13-1.fc20.x68_64
2) Lots of "Package [example] is a duplicate with [example]"
Please cold someone help me?