私はRuby＆Railsを始めて数週間ですが、経験豊富なプログラマーです。
POCアプリをherokuに移行しました。
アプリはそこにあります。標準のルビーランディングページが表示されます。
http://pacific-lake-7797.herokuapp.com/
POCページにアクセスしたとき：
http://pacific-lake-7797.herokuapp.com/user_stories
私は得る：
探していたページが存在しません。
アドレスを間違って入力したか、ページが移動した可能性があります。
そして私はこれをログに見ます：
←[36m2013-03-13T00:08:00+00:00 app[web.1]:←[0m Started GET
"/user_stories" for 66.31.53.52 at 2013-03-13 00:08:00 +0000
←[36m2013-03-13T00:08:00+00:00 app[web.1]:←[0m
←[36m2013-03-13T00:08:00+00:00 app[web.1]:←[0m
vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.12/lib/
active_support/inflector/methods.rb:230:in `block in constantize'
←[36m2013-03-13T00:08:00+00:00 app[web.1]:←[0m
vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.12/lib/
active_support/inflector/methods.rb:229:in `each'
←[36m2013-03-13T00:08:00+00:00 app[web.1]:←[0m
ActionController::RoutingError (uninitialized constant UserStoriesController):
問題がこのログメッセージに関連していることは私にはかなり明白に思えます。
ActionController::RoutingError (uninitialized constant UserStoriesController):
しかし、これまでのところ、それが何を意味するのかを説明するものは何も見つかりませんでした。
これが私が試したことです（大部分は皆さんに感謝します！）
DBはよさそうだ
rake db：migrateを実行しましたが、ログは良好に見えました。ローカルのpostgres管理者からデータベースにアクセスすることもできます。ページは実際にはまだデータベースにヒットしていませんが、DBはそこにあります。
config.assets.compile
この設定をtrueに変更しました。
config.assets.compile = true
生産はローカルで正常に実行されます
サーバーを本番モードで起動しました...
rails server -e production
すべてが正常に動作します。
すくいルート
私が実行した場合
heroku run "rake routes"
私のルートは大丈夫だと思います。警告は、まだ使用されているとは思わないRails4.0の準備中のようです。
結果：
$ heroku run "rake routes"
Running `rake routes` attached to terminal... up, run.6943
DEPRECATION WARNING: You have Rails 2.3-style plugins in vendor/plugins! Support
for these plugins will be removed in Rails 4.0. Move them out and bundle them i
n your Gemfile, or fold them in to your app as lib/myplugin/* and config/initial
izers/myplugin.rb. See the release notes for more on this: http://weblog.rubyonr
ails.org/2012/1/4/rails-3-2-0-rc2-has-been-released. (called from <top (required
)> at /app/Rakefile:7)
DEPRECATION WARNING: You have Rails 2.3-style plugins in vendor/plugins! Support
for these plugins will be removed in Rails 4.0. Move them out and bundle them i
n your Gemfile, or fold them in to your app as lib/myplugin/* and config/initial
izers/myplugin.rb. See the release notes for more on this: http://weblog.rubyonr
ails.org/2012/1/4/rails-3-2-0-rc2-has-been-released. (called from <top (required
)> at /app/Rakefile:7)
user_stories GET /user_stories(.:format) user_stories#index
POST /user_stories(.:format) user_stories#create
new_user_story GET /user_stories/new(.:format) user_stories#new
edit_user_story GET /user_stories/:id/edit(.:format) user_stories#edit
user_story GET /user_stories/:id(.:format) user_stories#show
PUT /user_stories/:id(.:format) user_stories#update
DELETE /user_stories/:id(.:format) user_stories#destroy
これがレコードの完全なログです
←[36m2013-03-13T00:08:00+00:00 app[web.1]:←[0m Started GET "/user_stories" for 66.31.53.52 at 2013-03-13 00:08:00 +0000
←[36m2013-03-13T00:08:00+00:00 app[web.1]:←[0m
←[36m2013-03-13T00:08:00+00:00 app[web.1]:←[0m vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.12/lib/active_support/inflector/methods.rb:230:in `block in constantize'
←[36m2013-03-13T00:08:00+00:00 app[web.1]:←[0m vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.12/lib/active_support/inflector/methods.rb:229:in `each'
←[36m2013-03-13T00:08:00+00:00 app[web.1]:←[0m ActionController::RoutingError (uninitialized constant UserStoriesController):
←[36m2013-03-13T00:08:00+00:00 app[web.1]:←[0m vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.12/lib/active_support/inflector/methods.rb:229:in `constantize'
←[36m2013-03-13T00:08:00+00:00 app[web.1]:←[0m vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.12/lib/action_dispatch/routing/route_set.rb:54:in `controller'
←[36m2013-03-13T00:08:00+00:00 app[web.1]:←[0m vendor/bundle/ruby/1.9.1/gems/journey-1.0.4/lib/journey/router.rb:68:in `block in call'
←[36m2013-03-13T00:08:00+00:00 app[web.1]:←[0m vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.12/lib/action_dispatch/routing/route_set.rb:69:in `controller_reference'
←[36m2013-03-13T00:08:00+00:00 app[web.1]:←[0m vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.12/lib/action_dispatch/routing/route_set.rb:32:in `call'
←[36m2013-03-13T00:08:00+00:00 app[web.1]:←[0m vendor/bundle/ruby/1.9.1/gems/journey-1.0.4/lib/journey/router.rb:56:in `each'
←[36m2013-03-13T00:08:00+00:00 app[web.1]:←[0m vendor/bundle/ruby/1.9.1/gems/journey-1.0.4/lib/journey/router.rb:56:in `call'
←[36m2013-03-13T00:08:00+00:00 app[web.1]:←[0m vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.12/lib/action_dispatch/routing/route_set.rb:601:in `call'
←[36m2013-03-13T00:08:00+00:00 app[web.1]:←[0m vendor/bundle/ruby/1.9.1/gems/rack-1.4.5/lib/rack/etag.rb:23:in `call'
←[36m2013-03-13T00:08:00+00:00 app[web.1]:←[0m vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.12/lib/action_dispatch/middleware/best_standards_support.rb:17:in `call'
←[36m2013-03-13T00:08:00+00:00 app[web.1]:←[0m vendor/bundle/ruby/1.9.1/gems/rack-1.4.5/lib/rack/conditionalget.rb:25:in `call'
←[36m2013-03-13T00:08:00+00:00 app[web.1]:←[0m vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.12/lib/action_dispatch/middleware/head.rb:14:in `call'
←[36m2013-03-13T00:08:00+00:00 app[web.1]:←[0m vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.12/lib/action_dispatch/middleware/params_parser.rb:21:in `call'
←[36m2013-03-13T00:08:00+00:00 app[web.1]:←[0m vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.12/lib/action_dispatch/middleware/flash.rb:242:in `call'
←[36m2013-03-13T00:08:00+00:00 app[web.1]:←[0m vendor/bundle/ruby/1.9.1/gems/rack-1.4.5/lib/rack/session/abstract/id.rb:210:in `context'
←[36m2013-03-13T00:08:00+00:00 app[web.1]:←[0m vendor/bundle/ruby/1.9.1/gems/rack-1.4.5/lib/rack/session/abstract/id.rb:205:in `call'
←[36m2013-03-13T00:08:00+00:00 app[web.1]:←[0m vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.12/lib/action_dispatch/middleware/cookies.rb:341:in `call'
←[36m2013-03-13T00:08:00+00:00 app[web.1]:←[0m vendor/bundle/ruby/1.9.1/gems/activerecord-3.2.12/lib/active_record/query_cache.rb:64:in `call'
←[36m2013-03-13T00:08:00+00:00 app[web.1]:←[0m vendor/bundle/ruby/1.9.1/gems/activerecord-3.2.12/lib/active_record/connection_adapters/abstract/connection_pool.rb:479:in `call'
←[36m2013-03-13T00:08:00+00:00 app[web.1]:←[0m vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.12/lib/action_dispatch/middleware/callbacks.rb:28:in `block in call'
←[36m2013-03-13T00:08:00+00:00 app[web.1]:←[0m vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.12/lib/active_support/callbacks.rb:405:in `_run__4347238382960990098__call__3337526573215554696__callba
cks'
←[36m2013-03-13T00:08:00+00:00 app[web.1]:←[0m vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.12/lib/active_support/callbacks.rb:405:in `__run_callback'
←[36m2013-03-13T00:08:00+00:00 app[web.1]:←[0m vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.12/lib/active_support/callbacks.rb:385:in `_run_call_callbacks'
←[36m2013-03-13T00:08:00+00:00 app[web.1]:←[0m vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.12/lib/active_support/callbacks.rb:81:in `run_callbacks'
←[36m2013-03-13T00:08:00+00:00 app[web.1]:←[0m vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.12/lib/action_dispatch/middleware/callbacks.rb:27:in `call'
←[36m2013-03-13T00:08:00+00:00 app[web.1]:←[0m vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.12/lib/action_dispatch/middleware/remote_ip.rb:31:in `call'
←[36m2013-03-13T00:08:00+00:00 app[web.1]:←[0m vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.12/lib/action_dispatch/middleware/debug_exceptions.rb:16:in `call'
←[36m2013-03-13T00:08:00+00:00 app[web.1]:←[0m vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.12/lib/action_dispatch/middleware/show_exceptions.rb:56:in `call'
←[36m2013-03-13T00:08:00+00:00 app[web.1]:←[0m vendor/bundle/ruby/1.9.1/gems/railties-3.2.12/lib/rails/rack/logger.rb:32:in `call_app'
←[36m2013-03-13T00:08:00+00:00 app[web.1]:←[0m vendor/bundle/ruby/1.9.1/gems/railties-3.2.12/lib/rails/rack/logger.rb:16:in `block in call'
←[36m2013-03-13T00:08:00+00:00 app[web.1]:←[0m vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.12/lib/active_support/tagged_logging.rb:22:in `tagged'
←[36m2013-03-13T00:08:00+00:00 app[web.1]:←[0m vendor/bundle/ruby/1.9.1/gems/railties-3.2.12/lib/rails/rack/logger.rb:16:in `call'
←[36m2013-03-13T00:08:00+00:00 app[web.1]:←[0m vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.12/lib/action_dispatch/middleware/request_id.rb:22:in `call'
←[36m2013-03-13T00:08:00+00:00 app[web.1]:←[0m vendor/bundle/ruby/1.9.1/gems/rack-1.4.5/lib/rack/methodoverride.rb:21:in `call'
←[36m2013-03-13T00:08:00+00:00 app[web.1]:←[0m vendor/bundle/ruby/1.9.1/gems/rack-1.4.5/lib/rack/runtime.rb:17:in `call'
←[36m2013-03-13T00:08:00+00:00 app[web.1]:←[0m vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.12/lib/active_support/cache/strategy/local_cache.rb:72:in `call'
←[36m2013-03-13T00:08:00+00:00 app[web.1]:←[0m vendor/bundle/ruby/1.9.1/gems/rack-1.4.5/lib/rack/lock.rb:15:in `call'
←[36m2013-03-13T00:08:00+00:00 app[web.1]:←[0m vendor/bundle/ruby/1.9.1/gems/rack-cache-1.2/lib/rack/cache/context.rb:185:in `lookup'
←[36m2013-03-13T00:08:00+00:00 app[web.1]:←[0m vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.12/lib/action_dispatch/middleware/static.rb:62:in `call'
←[36m2013-03-13T00:08:00+00:00 app[web.1]:←[0m vendor/bundle/ruby/1.9.1/gems/rack-cache-1.2/lib/rack/cache/context.rb:136:in `forward'
←[36m2013-03-13T00:08:00+00:00 app[web.1]:←[0m vendor/bundle/ruby/1.9.1/gems/rack-cache-1.2/lib/rack/cache/context.rb:66:in `call!'
←[36m2013-03-13T00:08:00+00:00 app[web.1]:←[0m vendor/bundle/ruby/1.9.1/gems/rack-cache-1.2/lib/rack/cache/context.rb:51:in `call'
←[36m2013-03-13T00:08:00+00:00 app[web.1]:←[0m vendor/bundle/ruby/1.9.1/gems/railties-3.2.12/lib/rails/engine.rb:479:in `call'
←[36m2013-03-13T00:08:00+00:00 app[web.1]:←[0m vendor/bundle/ruby/1.9.1/gems/rack-1.4.5/lib/rack/content_length.rb:14:in `call'
←[36m2013-03-13T00:08:00+00:00 app[web.1]:←[0m vendor/bundle/ruby/1.9.1/gems/rack-1.4.5/lib/rack/handler/webrick.rb:59:in `service'
←[36m2013-03-13T00:08:00+00:00 app[web.1]:←[0m vendor/bundle/ruby/1.9.1/gems/rack-cache-1.2/lib/rack/cache/context.rb:245:in `fetch'
←[36m2013-03-13T00:08:00+00:00 app[web.1]:←[0m /usr/local/lib/ruby/1.9.1/webrick/httpserver.rb:70:in `run'
←[36m2013-03-13T00:08:00+00:00 app[web.1]:←[0m
←[36m2013-03-13T00:08:00+00:00 app[web.1]:←[0m vendor/bundle/ruby/1.9.1/gems/railties-3.2.12/lib/rails/application.rb:223:in `call'
←[36m2013-03-13T00:08:00+00:00 app[web.1]:←[0m vendor/bundle/ruby/1.9.1/gems/railties-3.2.12/lib/rails/rack/log_tailer.rb:17:in `call'
←[36m2013-03-13T00:08:00+00:00 app[web.1]:←[0m /usr/local/lib/ruby/1.9.1/webrick/httpserver.rb:111:in `service'
←[36m2013-03-13T00:08:00+00:00 app[web.1]:←[0m /usr/local/lib/ruby/1.9.1/webrick/server.rb:183:in `block in start_thread'
←[36m2013-03-13T00:08:00+00:00 app[web.1]:←[0m
←[33m2013-03-13T00:08:00+00:00 heroku[router]:←[0m at=info method=GET path=/user_stories host=pacific-lake-7797.herokuapp.com fwd="66.31.53.52" dyno=web.1 queue=0 wait=0ms connect=10ms service=31ms st
atus=404 bytes=728
ありがとう！
これを事前に感謝します...そしてあなたがすでに私のために答えた他の何百もの質問に感謝します！