ruby on rails - can't use member outside resource(s) scope (ArgumentError) -

i have been upgrading rails 4, , after running command "rspec ." getting following error:

/users/lexi87/.rvm/gems/ruby-2.0.0-p0/gems/actionpack-4.0.0.rc1/lib/action_dispatch/routing/mapper.rb:1297:in `member': can't use member outside resource(s) scope (argumenterror) 

i have changed route file little , still no work. if has run similar issue , has fix please share me. in advance!

dating::application.routes.draw   'signup' => 'users#new'   'login' => 'sessions#new'   'logout' => 'sessions#destroy'   'edit' => 'users#edit'   "/profile/:id" => "users#show"   "profile/:id/settings" => 'users#edit'   'settings/:id' => 'users#settings'    resources :sessions   resources :password_resets   resources :galleries   resources :photos   resources :searches    resources :questions     resources :answers, only: [:new, :create]   end    resources :users       member       :settings   end end    root to: 'galleries#index'    resources :users |user|     resources :messages       collection         post 'delete_multiple'          'settings', on: :member         end     end   end 

i think problem here:

resources :messages   collection     post 'delete_multiple'      'settings', on: :member  # <--here   end end 

you can't define member inside collection, should move resources block, this:

resources :messages   collection     post 'delete_multiple'   end   'settings', on: :member end 

remember member route require id, because acts on member. collection route doesn't because acts on collection of objects. can't use both @ same time.