How to enable the Views UI module? I have the Views UI module on my Drupal site, and I would like to enable if but I can't.

How can I enable the Views UI module?

When I try to enable this module by using admin panel I am not able to enable because that 

check-box itself disabled and I am not able to check that check-box
Make sure that you have the required modules installed and enabled.
Your most probalby missing Chaos Tools

Module filter is also a easier way to manage modules