deviseとdevise_token_Authが動作しないルート

Question

私はRails API gemを使用していませんが、私はRailsにapiを構築しようとしています。私はdevise gemとdevise_token_auth gemを使用しています。私はただ行を実行しました：

rails g devise_token_auth:install FacilityUser auth 

生成コマンドadboveは機能しましたが、今では私のサーバーは起動しません。問題はroutes.rbファイルにあります。

Rails.application.routes.draw do 

    devise_for :facility_users, ActiveAdmin::Devise.config 

    devise_for :users, controllers: {registrations: "users/registrations", sessions: "users/sessions", passwords: "users/passwords"}, skip: [:sessions, :registrations] 

    root 'landings#index' 
    mount_devise_token_auth_for 'FacilityUser', at: 'auth' 

end 

私のルートファイルが上記のようである私は、サーバーを起動しようとすると、私は私のログに次のエラーを取得する：

davids-MacBook-Pro:waynefacility davidmurray$ rails s 
=> Booting WEBrick 
=> Rails 4.1.4 application starting in development on http://0.0.0.0:3000 
=> Run `rails server -h` for more startup options 
=> Notice: server is listening on all interfaces (0.0.0.0). Consider using 127.0.0.1 (--binding option) 
=> Ctrl-C to shutdown server 
Exiting 
/Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/actionpack-4.1.4/lib/action_dispatch/routing/route_set.rb:430:in `add_route': Invalid route name, already in use: 'new_facility_user_session' (ArgumentError) 
You may have defined two routes with the same name using the `:as` option, or you may be overriding a route already defined by a resource with the same naming. For the latter, you can restrict the routes created with `resources` as explained here: 
http://guides.rubyonrails.org/routing.html#restricting-the-routes-created 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/actionpack-4.1.4/lib/action_dispatch/routing/mapper.rb:1489:in `add_route' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/actionpack-4.1.4/lib/action_dispatch/routing/mapper.rb:1466:in `decomposed_match' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/actionpack-4.1.4/lib/action_dispatch/routing/mapper.rb:1464:in `block in decomposed_match' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/actionpack-4.1.4/lib/action_dispatch/routing/mapper.rb:1362:in `block (2 levels) in member' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/actionpack-4.1.4/lib/action_dispatch/routing/mapper.rb:757:in `scope' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/actionpack-4.1.4/lib/action_dispatch/routing/mapper.rb:1362:in `block in member' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/actionpack-4.1.4/lib/action_dispatch/routing/mapper.rb:1594:in `with_scope_level' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/actionpack-4.1.4/lib/action_dispatch/routing/mapper.rb:1358:in `member' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/actionpack-4.1.4/lib/action_dispatch/routing/mapper.rb:1464:in `decomposed_match' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/actionpack-4.1.4/lib/action_dispatch/routing/mapper.rb:1447:in `block in match' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/actionpack-4.1.4/lib/action_dispatch/routing/mapper.rb:1437:in `each' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/actionpack-4.1.4/lib/action_dispatch/routing/mapper.rb:1437:in `match' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/actionpack-4.1.4/lib/action_dispatch/routing/mapper.rb:630:in `map_method' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/actionpack-4.1.4/lib/action_dispatch/routing/mapper.rb:591:in `get' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/bundler/gems/devise-69bee06ceee6/lib/devise/rails/routes.rb:377:in `block in devise_session' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/actionpack-4.1.4/lib/action_dispatch/routing/mapper.rb:1141:in `block in resource' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/actionpack-4.1.4/lib/action_dispatch/routing/mapper.rb:1605:in `block (2 levels) in resource_scope' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/actionpack-4.1.4/lib/action_dispatch/routing/mapper.rb:757:in `scope' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/actionpack-4.1.4/lib/action_dispatch/routing/mapper.rb:1605:in `block in resource_scope' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/actionpack-4.1.4/lib/action_dispatch/routing/mapper.rb:1594:in `with_scope_level' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/actionpack-4.1.4/lib/action_dispatch/routing/mapper.rb:1604:in `resource_scope' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/actionpack-4.1.4/lib/action_dispatch/routing/mapper.rb:1140:in `resource' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/bundler/gems/devise-69bee06ceee6/lib/devise/rails/routes.rb:376:in `devise_session' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/bundler/gems/devise-69bee06ceee6/lib/devise/rails/routes.rb:266:in `block (4 levels) in devise_for' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/bundler/gems/devise-69bee06ceee6/lib/devise/rails/routes.rb:266:in `each' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/bundler/gems/devise-69bee06ceee6/lib/devise/rails/routes.rb:266:in `block (3 levels) in devise_for' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/bundler/gems/devise-69bee06ceee6/lib/devise/rails/routes.rb:470:in `with_devise_exclusive_scope' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/bundler/gems/devise-69bee06ceee6/lib/devise/rails/routes.rb:265:in `block (2 levels) in devise_for' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/bundler/gems/devise-69bee06ceee6/lib/devise/rails/routes.rb:368:in `block in devise_scope' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/actionpack-4.1.4/lib/action_dispatch/routing/mapper.rb:881:in `block in constraints' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/actionpack-4.1.4/lib/action_dispatch/routing/mapper.rb:757:in `scope' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/actionpack-4.1.4/lib/action_dispatch/routing/mapper.rb:881:in `constraints' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/bundler/gems/devise-69bee06ceee6/lib/devise/rails/routes.rb:367:in `devise_scope' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/bundler/gems/devise-69bee06ceee6/lib/devise/rails/routes.rb:264:in `block in devise_for' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/bundler/gems/devise-69bee06ceee6/lib/devise/rails/routes.rb:240:in `each' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/bundler/gems/devise-69bee06ceee6/lib/devise/rails/routes.rb:240:in `devise_for' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/devise_token_auth-0.1.37/lib/devise_token_auth/rails/routes.rb:25:in `mount_devise_token_auth_for' 
    from /Users/davidmurray/projects/waynefacility/config/routes.rb:14:in `block in <top (required)>' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/actionpack-4.1.4/lib/action_dispatch/routing/route_set.rb:337:in `instance_exec' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/actionpack-4.1.4/lib/action_dispatch/routing/route_set.rb:337:in `eval_block' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/actionpack-4.1.4/lib/action_dispatch/routing/route_set.rb:315:in `draw' 
    from /Users/davidmurray/projects/waynefacility/config/routes.rb:1:in `<top (required)>' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:241:in `load' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:241:in `block in load' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:232:in `load_dependency' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:241:in `load' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/application/routes_reloader.rb:40:in `block in load_paths' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/application/routes_reloader.rb:40:in `each' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/application/routes_reloader.rb:40:in `load_paths' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/application/routes_reloader.rb:16:in `reload!' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/application/routes_reloader.rb:26:in `block in updater' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/file_update_checker.rb:75:in `call' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/file_update_checker.rb:75:in `execute' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/application/routes_reloader.rb:27:in `updater' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/application/routes_reloader.rb:7:in `execute_if_updated' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/application/finisher.rb:71:in `block in <module:Finisher>' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/initializable.rb:30:in `instance_exec' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/initializable.rb:30:in `run' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/initializable.rb:55:in `block in run_initializers' 
    from /Users/davidmurray/.rvm/rubies/ruby-2.2.0/lib/ruby/2.2.0/tsort.rb:226:in `block in tsort_each' 
    from /Users/davidmurray/.rvm/rubies/ruby-2.2.0/lib/ruby/2.2.0/tsort.rb:348:in `block (2 levels) in each_strongly_connected_component' 
    from /Users/davidmurray/.rvm/rubies/ruby-2.2.0/lib/ruby/2.2.0/tsort.rb:429:in `each_strongly_connected_component_from' 
    from /Users/davidmurray/.rvm/rubies/ruby-2.2.0/lib/ruby/2.2.0/tsort.rb:347:in `block in each_strongly_connected_component' 
    from /Users/davidmurray/.rvm/rubies/ruby-2.2.0/lib/ruby/2.2.0/tsort.rb:345:in `each' 
    from /Users/davidmurray/.rvm/rubies/ruby-2.2.0/lib/ruby/2.2.0/tsort.rb:345:in `call' 
    from /Users/davidmurray/.rvm/rubies/ruby-2.2.0/lib/ruby/2.2.0/tsort.rb:345:in `each_strongly_connected_component' 
    from /Users/davidmurray/.rvm/rubies/ruby-2.2.0/lib/ruby/2.2.0/tsort.rb:224:in `tsort_each' 
    from /Users/davidmurray/.rvm/rubies/ruby-2.2.0/lib/ruby/2.2.0/tsort.rb:203:in `tsort_each' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/initializable.rb:54:in `run_initializers' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/application.rb:300:in `initialize!' 
    from /Users/davidmurray/projects/waynefacility/config/environment.rb:5:in `<top (required)>' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:247:in `require' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:247:in `block in require' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:232:in `load_dependency' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:247:in `require' 
    from /Users/davidmurray/projects/waynefacility/config.ru:3:in `block in <main>' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/rack-1.5.5/lib/rack/builder.rb:55:in `instance_eval' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/rack-1.5.5/lib/rack/builder.rb:55:in `initialize' 
    from /Users/davidmurray/projects/waynefacility/config.ru:in `new' 
    from /Users/davidmurray/projects/waynefacility/config.ru:in `<main>' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/rack-1.5.5/lib/rack/builder.rb:49:in `eval' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/rack-1.5.5/lib/rack/builder.rb:49:in `new_from_string' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/rack-1.5.5/lib/rack/builder.rb:40:in `parse_file' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/rack-1.5.5/lib/rack/server.rb:277:in `build_app_and_options_from_config' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/rack-1.5.5/lib/rack/server.rb:199:in `app' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/commands/server.rb:50:in `app' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/rack-1.5.5/lib/rack/server.rb:314:in `wrapped_app' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/commands/server.rb:130:in `log_to_stdout' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/commands/server.rb:67:in `start' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/commands/commands_tasks.rb:81:in `block in server' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/commands/commands_tasks.rb:76:in `tap' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/commands/commands_tasks.rb:76:in `server' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/commands/commands_tasks.rb:40:in `run_command!' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/commands.rb:17:in `<top (required)>' 
    from bin/rails:4:in `require' 
    from bin/rails:4:in `<main>' 

mount_devise_token_auth_for 'FacilityUser', at: 'auth'があるように私はルートの順序を変更した場合最初の行は、その後、私は次のエラーを取得する：

davids-MacBook-Pro:waynefacility davidmurray$ rails s 
=> Booting WEBrick 
=> Rails 4.1.4 application starting in development on http://0.0.0.0:3000 
=> Run `rails server -h` for more startup options 
=> Notice: server is listening on all interfaces (0.0.0.0). Consider using 127.0.0.1 (--binding option) 
=> Ctrl-C to shutdown server 
Exiting 
/Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/devise_token_auth-0.1.37/lib/devise_token_auth/rails/routes.rb:40:in `block in mount_devise_token_auth_for': uninitialized constant ActionDispatch::Routing::Mapper::Scope (NameError) 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/devise_token_auth-0.1.37/lib/devise_token_auth/rails/routes.rb:86:in `unnest_namespace' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/devise_token_auth-0.1.37/lib/devise_token_auth/rails/routes.rb:32:in `mount_devise_token_auth_for' 
    from /Users/davidmurray/projects/waynefacility/config/routes.rb:2:in `block in <top (required)>' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/actionpack-4.1.4/lib/action_dispatch/routing/route_set.rb:337:in `instance_exec' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/actionpack-4.1.4/lib/action_dispatch/routing/route_set.rb:337:in `eval_block' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/actionpack-4.1.4/lib/action_dispatch/routing/route_set.rb:315:in `draw' 
    from /Users/davidmurray/projects/waynefacility/config/routes.rb:1:in `<top (required)>' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/application/routes_reloader.rb:40:in `block in load_paths' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/application/routes_reloader.rb:40:in `each' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/application/routes_reloader.rb:40:in `load_paths' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/application/routes_reloader.rb:16:in `reload!' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/application/routes_reloader.rb:26:in `block in updater' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/file_update_checker.rb:75:in `call' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/file_update_checker.rb:75:in `execute' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/application/routes_reloader.rb:27:in `updater' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/application/routes_reloader.rb:7:in `execute_if_updated' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/application/finisher.rb:71:in `block in <module:Finisher>' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/initializable.rb:30:in `instance_exec' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/initializable.rb:30:in `run' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/initializable.rb:55:in `block in run_initializers' 
    from /Users/davidmurray/.rvm/rubies/ruby-2.2.0/lib/ruby/2.2.0/tsort.rb:226:in `block in tsort_each' 
    from /Users/davidmurray/.rvm/rubies/ruby-2.2.0/lib/ruby/2.2.0/tsort.rb:348:in `block (2 levels) in each_strongly_connected_component' 
    from /Users/davidmurray/.rvm/rubies/ruby-2.2.0/lib/ruby/2.2.0/tsort.rb:429:in `each_strongly_connected_component_from' 
    from /Users/davidmurray/.rvm/rubies/ruby-2.2.0/lib/ruby/2.2.0/tsort.rb:347:in `block in each_strongly_connected_component' 
    from /Users/davidmurray/.rvm/rubies/ruby-2.2.0/lib/ruby/2.2.0/tsort.rb:345:in `each' 
    from /Users/davidmurray/.rvm/rubies/ruby-2.2.0/lib/ruby/2.2.0/tsort.rb:345:in `call' 
    from /Users/davidmurray/.rvm/rubies/ruby-2.2.0/lib/ruby/2.2.0/tsort.rb:345:in `each_strongly_connected_component' 
    from /Users/davidmurray/.rvm/rubies/ruby-2.2.0/lib/ruby/2.2.0/tsort.rb:224:in `tsort_each' 
    from /Users/davidmurray/.rvm/rubies/ruby-2.2.0/lib/ruby/2.2.0/tsort.rb:203:in `tsort_each' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/initializable.rb:54:in `run_initializers' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/application.rb:300:in `initialize!' 
    from /Users/davidmurray/projects/waynefacility/config/environment.rb:5:in `<top (required)>' 
    from /Users/davidmurray/projects/waynefacility/config.ru:3:in `block in <main>' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/rack-1.5.5/lib/rack/builder.rb:55:in `instance_eval' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/rack-1.5.5/lib/rack/builder.rb:55:in `initialize' 
    from /Users/davidmurray/projects/waynefacility/config.ru:in `new' 
    from /Users/davidmurray/projects/waynefacility/config.ru:in `<main>' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/rack-1.5.5/lib/rack/builder.rb:49:in `eval' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/rack-1.5.5/lib/rack/builder.rb:49:in `new_from_string' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/rack-1.5.5/lib/rack/builder.rb:40:in `parse_file' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/rack-1.5.5/lib/rack/server.rb:277:in `build_app_and_options_from_config' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/rack-1.5.5/lib/rack/server.rb:199:in `app' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/commands/server.rb:50:in `app' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/rack-1.5.5/lib/rack/server.rb:314:in `wrapped_app' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/commands/server.rb:130:in `log_to_stdout' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/commands/server.rb:67:in `start' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/commands/commands_tasks.rb:81:in `block in server' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/commands/commands_tasks.rb:76:in `tap' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/commands/commands_tasks.rb:76:in `server' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/commands/commands_tasks.rb:40:in `run_command!' 
    from /Users/davidmurray/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/commands.rb:17:in `<top (required)>' 
    from bin/rails:4:in `require' 
    from bin/rails:4:in `<main>' 

私はルートの束をコメントアウトしようとしたので、私が持っているすべては、次のとおりです。

mount_devise_token_auth_for 'FacilityUser', at: 'auth' 
root 'landings#index' 

しかし、私はまだ同じblock in mount_devise_token_auth_for': uninitialized constant ActionDispatch::Routing::Mapper::Scope (NameError)エラーを取得します。

これを修正するにはどうすればよいですか？

Answer 1

このように使用しました。その完全に動作します。

# token auth routes available at /api/v1/auth 
    namespace :api do 
    scope :v1 do 
     mount_devise_token_auth_for 'User', at: 'auth' 
    end 
    end 

    # devise_for :users 
    devise_for :users, controllers: { 
    sessions:  'users/sessions', 
    registrations: 'users/registrations' 
    } 

Answer 2

あなたはこのようにあなたのルートをマウントする必要がありますdevise_token_authを使用しているとして：

Rails.application.routes.draw do 
     # This one conflicts with mount_devise_token_auth, 
     # if you want to use devise_token_auth you should only use 
     # mount_devise_token_auth_for. 
     # devise_for :facility_users, ActiveAdmin::Devise.config 

     devise_for :users, controllers: { registrations: "users/registrations", 
     sessions: "users/sessions", 
     passwords: "users/passwords" }, 
     skip: [:sessions, :registrations] 

     root 'landings#index' 
     mount_devise_token_auth_for 'FacilityUser', at: 'auth' 

    end 

それが動作するはずです。