How to access controller located as part of another application in plugins directory

Hey all,

I installed blogkit as a rails plugin. It installed in the vendor directory as an entire application. called blog_kit. This application has a controller called blog_posts_controller. However, when I route to blog_posts in my application:

   resources :blog_posts do        resources :blog_comments        resources :blog_images

       collection do            get :drafts        end

       member do            get :tag        end    end

It gives uninitialized constant BlogPostsController, because it doesn't know where to find the controller.

Any idea how to get it to recognize the controller in vendor folder?

Thanks for response.