Hello people

I have ubuntu 11.10 64bit and running gnome shell. If you ever used gnome-shell, you will know what is gnome-tweak-tool
Anyway, i can not run it. After i click on the icon, it loads few moments then stops. If i run by terminal i get this error:

Traceback (most recent call last):
File "/usr/bin/gnome-tweak-tool", line 22, in <module>
import gi
ImportError: No module named gi

Please, help me