Q&A
```### 前提・実現したいこと ここに質問の内容を詳しく書いてください。 （例）PHP(CakePHP)で●●なシステムを作っています。 ■■な機能を実装中に以下のエラーメッセージが発生しました。 ### 発生している問題・エラーメッセージ herokuのURLにアクセスするとこの画面が出てきてしまいます。  このようなエラーが出てしまったので、heroku logsを行ったところ 下記のようなエラーが出てるみたいです。 解決策をご教示いただけないでしょうか？ 2018-02-26T15:57:56.007108+00:00 heroku[web.1]: Process exited with status 1 2018-02-26T15:57:55.837578+00:00 heroku[web.1]: State changed from starting to up 2018-02-26T15:58:01.999818+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=railstyutorial-kosukedance.herokuapp.com request_id=9832db31-3161-46a3-a11b-c35b64b43248 fwd="106.181.167.123" dyno=web.1 connect=5001ms service= status=503 bytes= protocol=https 2018-02-26T15:58:02.970951+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=railstyutorial-kosukedance.herokuapp.com request_id=a81cdd06-9396-4d79-b247-e288168b3fad fwd="106.181.167.123" dyno= connect= service= status=503 bytes= protocol=https 2018-02-26T15:58:40.344365+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=railstyutorial-kosukedance.herokuapp.com request_id=8fe772be-fabe-4097-914e-1163e659d86f fwd="106.181.167.123" dyno= connect= service= status=503 bytes= protocol=https 2018-02-26T15:58:40.895832+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=railstyutorial-kosukedance.herokuapp.com request_id=b60ef85f-2be8-4a4d-82eb-f9220c3c687f fwd="106.181.167.123" dyno= connect= service= status=503 bytes= protocol=https 2018-02-26T16:06:48.713136+00:00 app[api]: Starting process with command `rails console` by user haruengineer@gmail.com 2018-02-26T16:06:59.677238+00:00 heroku[run.1311]: Awaiting client 2018-02-26T16:06:59.749524+00:00 heroku[run.1311]: Starting process with command `rails console` 2018-02-26T16:06:59.820097+00:00 heroku[run.1311]: State changed from starting to up 2018-02-26T16:10:10.916787+00:00 heroku[run.1311]: Process exited with status 0 2018-02-26T16:10:10.932605+00:00 heroku[run.1311]: State changed from up to complete 2018-02-26T16:16:34.660595+00:00 heroku[web.1]: State changed from crashed to starting 2018-02-26T16:16:40.024807+00:00 heroku[web.1]: Starting process with command `bundle exec puma -C config/puma.rb` 2018-02-26T16:16:42.981068+00:00 app[web.1]: [4] Puma starting in cluster mode... 2018-02-26T16:16:42.981118+00:00 app[web.1]: [4] * Version 3.9.1 (ruby 2.3.4-p301), codename: Private Caller 2018-02-26T16:16:42.981120+00:00 app[web.1]: [4] * Min threads: 5, max threads: 5 2018-02-26T16:16:42.981129+00:00 app[web.1]: [4] * Environment: production 2018-02-26T16:16:42.981131+00:00 app[web.1]: [4] * Process workers: 2 2018-02-26T16:16:42.981137+00:00 app[web.1]: [4] * Preloading application 2018-02-26T16:16:49.195938+00:00 app[web.1]: [4] * Listening on tcp://0.0.0.0:36934 2018-02-26T16:16:49.196290+00:00 app[web.1]: [4] * Listening on tcp://0.0.0.0:36934 2018-02-26T16:16:49.196875+00:00 app[web.1]: bundler: failed to load command: puma (/app/vendor/bundle/ruby/2.3.0/bin/puma) 2018-02-26T16:16:49.196936+00:00 app[web.1]: Errno::EADDRINUSE: Address already in use - bind(2) for "0.0.0.0" port 36934 2018-02-26T16:16:49.196956+00:00 app[web.1]: /app/vendor/bundle/ruby/2.3.0/gems/puma-3.9.1/lib/puma/binder.rb:269:in `initialize' 2018-02-26T16:16:49.196958+00:00 app[web.1]: /app/vendor/bundle/ruby/2.3.0/gems/puma-3.9.1/lib/puma/binder.rb:269:in `new' 2018-02-26T16:16:49.196960+00:00 app[web.1]: /app/vendor/bundle/ruby/2.3.0/gems/puma-3.9.1/lib/puma/binder.rb:269:in `add_tcp_listener' 2018-02-26T16:16:49.196962+00:00 app[web.1]: /app/vendor/bundle/ruby/2.3.0/gems/puma-3.9.1/lib/puma/binder.rb:105:in `block in parse' 2018-02-26T16:16:49.196964+00:00 app[web.1]: /app/vendor/bundle/ruby/2.3.0/gems/puma-3.9.1/lib/puma/binder.rb:88:in `each' 2018-02-26T16:16:49.196966+00:00 app[web.1]: /app/vendor/bundle/ruby/2.3.0/gems/puma-3.9.1/lib/puma/binder.rb:88:in `parse' 2018-02-26T16:16:49.196968+00:00 app[web.1]: /app/vendor/bundle/ruby/2.3.0/gems/puma-3.9.1/lib/puma/runner.rb:144:in `load_and_bind' 2018-02-26T16:16:49.196969+00:00 app[web.1]: /app/vendor/bundle/ruby/2.3.0/gems/puma-3.9.1/lib/puma/cluster.rb:391:in `run' 2018-02-26T16:16:49.196971+00:00 app[web.1]: /app/vendor/bundle/ruby/2.3.0/gems/puma-3.9.1/lib/puma/launcher.rb:174:in `run' 2018-02-26T16:16:49.196973+00:00 app[web.1]: /app/vendor/bundle/ruby/2.3.0/gems/puma-3.9.1/lib/puma/cli.rb:77:in `run' 2018-02-26T16:16:49.196975+00:00 app[web.1]: /app/vendor/bundle/ruby/2.3.0/gems/puma-3.9.1/bin/puma:10:in `<top (required)>' 2018-02-26T16:16:49.196978+00:00 app[web.1]: /app/vendor/bundle/ruby/2.3.0/bin/puma:22:in `load' 2018-02-26T16:16:49.197187+00:00 app[web.1]: /app/vendor/bundle/ruby/2.3.0/bin/puma:22:in `<top (required)>' 2018-02-26T16:16:49.349435+00:00 heroku[web.1]: State changed from starting to up 2018-02-26T16:16:49.674072+00:00 heroku[web.1]: State changed from up to crashed 2018-02-26T16:16:49.658445+00:00 heroku[web.1]: Process exited with status 1 2018-02-26T16:18:11.530930+00:00 heroku[web.1]: State changed from crashed to starting 2018-02-26T16:18:14.837968+00:00 heroku[web.1]: Starting process with command `bundle exec puma -C config/puma.rb` 2018-02-26T16:18:18.035898+00:00 app[web.1]: [4] Puma starting in cluster mode... 2018-02-26T16:18:18.035931+00:00 app[web.1]: [4] * Version 3.9.1 (ruby 2.3.4-p301), codename: Private Caller 2018-02-26T16:18:18.035933+00:00 app[web.1]: [4] * Min threads: 5, max threads: 5 2018-02-26T16:18:18.035936+00:00 app[web.1]: [4] * Process workers: 2 2018-02-26T16:18:18.035935+00:00 app[web.1]: [4] * Environment: production 2018-02-26T16:18:18.035938+00:00 app[web.1]: [4] * Preloading application 2018-02-26T16:18:20.118587+00:00 app[web.1]: [4] * Listening on tcp://0.0.0.0:40974 2018-02-26T16:18:20.118795+00:00 app[web.1]: bundler: failed to load command: puma (/app/vendor/bundle/ruby/2.3.0/bin/puma) 2018-02-26T16:18:20.322616+00:00 heroku[web.1]: Process exited with status 1 2018-02-26T16:18:54.525386+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=railstyutorial-kosukedance.herokuapp.com request_id=6c9066fb-aff9-448c-95ef-00f3446aeb7f fwd="106.181.167.123" dyno= connect= service= status=503 bytes= protocol=https 2018-02-26T16:18:54.830832+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=railstyutorial-kosukedance.herokuapp.com request_id=005427d0-afb6-433e-a573-26a6b415ce81 fwd="106.181.167.123" dyno= connect= service= status=503 bytes= protocol=https 2018-02-26T16:18:55.900834+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=railstyutorial-kosukedance.herokuapp.com request_id=1fd87ad4-078a-4e87-8b90-4772b9ad1099 fwd="106.181.167.123" dyno= connect= service= status=503 bytes= protocol=https 2018-02-26T16:20:54.731800+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=railstyutorial-kosukedance.herokuapp.com request_id=a5587b4b-adeb-489b-aa5c-7fce08787c7e fwd="106.181.167.123" dyno= connect= service= status=503 bytes= protocol=https 2018-02-26T16:20:55.339758+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=railstyutorial-kosukedance.herokuapp.com request_id=a3c48ad1-4237-4e5f-8b8b-d8f669637d38 fwd="106.181.167.123" dyno= connect= service= status=503 bytes= protocol=https 2018-02-26T16:24:39.569159+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=railstyutorial-kosukedance.herokuapp.com request_id=99f18e5a-ddba-496a-9f0c-e8220dcc9359 fwd="106.181.167.123" dyno= connect= service= status=503 bytes= protocol=https 2018-02-26T16:24:39.861752+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=railstyutorial-kosukedance.herokuapp.com request_id=61a0c993-7df3-45c7-ad53-75400aa3a4b9 fwd="106.181.167.123" dyno= connect= service= status=503 bytes= protocol=https ここにより詳細な情報を記載してください。
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