Xuhao
Any update on this?
I still have this problem on version 0.1.2 [#L51](https://github.com/rails/rails-observers/blob/master/lib/rails/observers/action_controller/caching/sweeping.rb#L51) always return false, so ActionController::Caching::Sweeper can't be defined. I think it's because require order is not correct. [#L18](https://github.com/rails/rails-observers/blob/master/lib/rails/observers/railtie.rb#L18) ran before [#L8](https://github.com/rails/rails-observers/blob/master/lib/rails/observers/railtie.rb#L8)
For me, after a bad experience on this gem, I give up to try to use it. Thanks for the bad example and release without test. If you think it...
Sorry I did not test it on a new rails4 app. I just use it in my project which upgraded to rails4 form rails3.2. maybe it works in a new...
That's cool, it's the best problem for me. Thanks a lot!