I messed up my Ubuntu. What I did is that i Uninstalled CompizConfig bcoz two features were not working well. So I uninstalled CC. And then I restarted my system. Ubuntu fallback in 2d mode.
So i run this command for Complete CC package
sudo apt-get install compiz compiz-fusion-plugins-main compiz-fusion-plugins-extra compizconfig-settings-manager
and then again I restarted my system. And after that I cant see Unity bar and panel.
Please help how to make it appear again.