administrate:views generator is missing

Created by: ghost

I am trying to customize the views. but when I run the command rails generate administrate:views User is shows the error

Could not find generator 'administrate:views'. Maybe you meant 
'administrate:install' or 'kaminari:views' or 'devise:views'
Run `rails generate --help` for more options.

and running the rails generate --help giving me only two generators of administrate

administrate:dashboard
administrate:install

Anybody fixed or facing this issue.?