i have installed gnome3.7 from gnome3 ppa
and i have removed evolution using
sudo apt-get remove evolution*
and accidentally it removed gnome, gnome-shell and bunch of other things
and now when i restart and log in it says
failed to load sessioon "gnome"
and unity greeter is not showing desktop environment selector?
i have cinnamon, unity, installed?
i went in to recovery mode edited lightdm conf file and set session to ubuntu but still it is logging into gnome instead of unity
how i can fix this