Desktop envivornment switching from unity to gnome resulted in blank background with side panel

Question

I tried to switch from unity desktop envivornment to gnome using the following commands

sudo apt-get install gnome-shell
sudo apt-get install ubuntu-gnome-desktop

And the result is a blank background and side panel as shown in the image

How do I remove this panel?

Answer 1

I think the image failed to come through...

Try this in the terminal:

sudo apt-get update; sudo apt-get install gnome-session-fallback

as suggested in this tutorial: http://www.howtogeek.com/189912/how-to-install-the-gnome-classic-desktop-in-ubuntu-14.04/