Heroku - 残念ですが、何かが間違っていた - Herokuでのみ発生した問題がローカルではありません

残念ですが、他に何を試していいのか分かりません。私はヒロクに私のレールアプリケーションをプッシュし、最後のプッシュの間、ページ（プロジェクト＃インデックス）の1つがHerokuでこのエラーを返す以外はすべてうまくいった：Heroku - 残念ですが、何かが間違っていた - Herokuでのみ発生した問題がローカルではありません

申し訳ありませんが、何かが間違っていました。アプリケーションの所有者は、ログで詳細を確認してください。

サーバーをローカルで実行してもクラウド9では同じことが起こりません。同じページが問題なく表示されます。

以前の回答を見ると、私が実行して試してみた：

heroku run rake db:migrate

私はまた、次のコマンドを実行して、再押し、すべてを試してみました：ここ

git push heroku 
heroku pg:reset DATABASE 
heroku run rails db:migrate 
heroku run rails db:seed 
heroku restart

は私のHerokuのログです：

2016-11-09T18:48:22.095610+00:00 app[web.1]: * Min threads: 0, max threads: 16 
2016-11-09T18:48:22.095627+00:00 app[web.1]: * Environment: production 
2016-11-09T18:48:22.096004+00:00 app[web.1]: Use Ctrl-C to stop 
2016-11-09T18:48:22.095780+00:00 app[web.1]: * Listening on tcp://0.0.0.0:3666 
2016-11-09T18:48:22.259703+00:00 heroku[web.1]: State changed from starting to up 
2016-11-09T18:48:24.502298+00:00 heroku[router]: at=info method=GET path="/projects" host=stark-falls-63733.herokuapp.com request_id=2c6f6731-bedc-4367-83f9-f40a87273fe5 fwd="86.44.57.230" dyno=web.1 connect=0ms service=1402ms status=500 bytes=1669 
2016-11-09T18:48:24.790630+00:00 heroku[router]: at=info method=GET path="/favicon.ico" host=stark-falls-63733.herokuapp.com request_id=4dae94ac-b865-4514-b59b-074591a69d05 fwd="86.44.57.230" dyno=web.1 connect=0ms service=2ms status=200 bytes=143 
2016-11-09T18:49:18.903562+00:00 heroku[api]: Starting process with command `rails db:migrate` by [email protected] 
2016-11-09T18:49:23.120484+00:00 heroku[run.7366]: Awaiting client 
2016-11-09T18:49:23.143476+00:00 heroku[run.7366]: Starting process with command `rails db:migrate` 
2016-11-09T18:49:23.302666+00:00 heroku[run.7366]: State changed from starting to up 
2016-11-09T18:49:28.044047+00:00 heroku[run.7366]: State changed from up to complete 
2016-11-09T18:49:28.029405+00:00 heroku[run.7366]: Process exited with status 0 
2016-11-09T18:49:39.596513+00:00 heroku[api]: Starting process with command `rails db:seed` by [email protected] 
2016-11-09T18:49:44.198548+00:00 heroku[run.3484]: Awaiting client 
2016-11-09T18:49:44.246315+00:00 heroku[run.3484]: Starting process with command `rails db:seed` 
2016-11-09T18:49:44.304728+00:00 heroku[run.3484]: State changed from starting to up 
2016-11-09T18:49:50.403853+00:00 heroku[run.3484]: State changed from up to complete 
2016-11-09T18:49:50.393367+00:00 heroku[run.3484]: Process exited with status 0 
2016-11-09T18:50:11.659495+00:00 heroku[router]: at=info method=GET path="/projects" host=stark-falls-63733.herokuapp.com request_id=73beb6fe-90c6-41c9-8f75-e8939fd7a4be fwd="86.44.57.230" dyno=web.1 connect=0ms service=109ms status=500 bytes=1669 
2016-11-09T18:50:11.861324+00:00 heroku[router]: at=info method=GET path="/favicon.ico" host=stark-falls-63733.herokuapp.com request_id=694b31e7-b3df-4c00-85fa-d931d6f3ba11 fwd="86.44.57.230" dyno=web.1 connect=0ms service=3ms status=200 bytes=143 
2016-11-09T18:50:13.257178+00:00 heroku[router]: at=info method=GET path="/projects" host=stark-falls-63733.herokuapp.com request_id=0c7878ec-0017-48a2-a53d-55126ca12a97 fwd="86.44.57.230" dyno=web.1 connect=0ms service=28ms status=500 bytes=1669 
2016-11-09T18:50:13.422750+00:00 heroku[router]: at=info method=GET path="/favicon.ico" host=stark-falls-63733.herokuapp.com request_id=8c44d51f-ca89-487b-ae25-eb06ef04735e fwd="86.44.57.230" dyno=web.1 connect=0ms service=4ms status=200 bytes=143 
2016-11-09T18:50:25.482365+00:00 heroku[web.1]: Restarting 
2016-11-09T18:50:25.483959+00:00 heroku[web.1]: State changed from up to starting 
2016-11-09T18:50:28.492311+00:00 heroku[web.1]: Stopping all processes with SIGTERM 
2016-11-09T18:50:29.151373+00:00 app[web.1]: - Gracefully stopping, waiting for requests to finish 
2016-11-09T18:50:29.151850+00:00 app[web.1]: === puma shutdown: 2016-11-09 18:50:29 +0000 === 
2016-11-09T18:50:29.151889+00:00 app[web.1]: - Goodbye! 
2016-11-09T18:50:29.152378+00:00 app[web.1]: Exiting 
2016-11-09T18:50:29.358836+00:00 heroku[web.1]: Process exited with status 0 
2016-11-09T18:50:29.841404+00:00 heroku[web.1]: Starting process with command `bin/rails server -p 22013 -e production` 
2016-11-09T18:50:35.820996+00:00 app[web.1]: => Booting Puma 
2016-11-09T18:50:35.821017+00:00 app[web.1]: => Rails 5.0.0.1 application starting in production on http://0.0.0.0:22013 
2016-11-09T18:50:35.821018+00:00 app[web.1]: => Run `rails server -h` for more startup options 
2016-11-09T18:50:37.033565+00:00 app[web.1]: Puma starting in single mode... 
2016-11-09T18:50:37.033582+00:00 app[web.1]: * Version 3.4.0 (ruby 2.2.4-p230), codename: Owl Bowl Brawl 
2016-11-09T18:50:37.033585+00:00 app[web.1]: * Min threads: 0, max threads: 16 
2016-11-09T18:50:37.033617+00:00 app[web.1]: * Environment: production 
2016-11-09T18:50:37.033865+00:00 app[web.1]: * Listening on tcp://0.0.0.0:22013 
2016-11-09T18:50:37.034023+00:00 app[web.1]: Use Ctrl-C to stop 
2016-11-09T18:50:37.177370+00:00 heroku[web.1]: State changed from starting to up 
2016-11-09T18:50:37.930818+00:00 heroku[router]: at=info method=GET path="/projects" host=stark-falls-63733.herokuapp.com request_id=01420f22-76e1-4916-be34-e96e5db985df fwd="86.44.57.230" dyno=web.1 connect=0ms service=424ms status=500 bytes=1669 
2016-11-09T18:50:38.121454+00:00 heroku[router]: at=info method=GET path="/favicon.ico" host=stark-falls-63733.herokuapp.com request_id=89d07228-0172-4809-8a43-241662cdfdcb fwd="86.44.57.230" dyno=web.1 connect=0ms service=4ms status=200 bytes=143 
2016-11-09T18:52:12.082290+00:00 heroku[api]: Starting process with command `bundle exec rake db:migrate` by [email protected] 
2016-11-09T18:52:18.172017+00:00 heroku[run.6086]: State changed from starting to up 
2016-11-09T18:52:18.336471+00:00 heroku[run.6086]: Awaiting client 
2016-11-09T18:52:18.372809+00:00 heroku[run.6086]: Starting process with command `bundle exec rake db:migrate` 
2016-11-09T18:52:23.522954+00:00 heroku[run.6086]: State changed from up to complete 
2016-11-09T18:52:23.513862+00:00 heroku[run.6086]: Process exited with status 0 
2016-11-09T18:52:30.397822+00:00 heroku[router]: at=info method=GET path="/projects" host=stark-falls-63733.herokuapp.com request_id=8a1dc1d5-1f5b-425b-8deb-c0d60dbe15bb fwd="86.44.57.230" dyno=web.1 connect=0ms service=61ms status=500 bytes=1669 
2016-11-09T18:52:30.602701+00:00 heroku[router]: at=info method=GET path="/favicon.ico" host=stark-falls-63733.herokuapp.com request_id=6105f2be-9c60-4d35-8ff2-cc4fcf7b438f fwd="86.44.57.230" dyno=web.1 connect=1ms service=1ms status=200 bytes=143 
2016-11-09T18:52:32.824633+00:00 heroku[router]: at=info method=GET path="/projects" host=stark-falls-63733.herokuapp.com request_id=074d3fc0-9ad1-4c50-9325-139d392b502b fwd="86.44.57.230" dyno=web.1 connect=0ms service=40ms status=500 bytes=1669 
2016-11-09T18:52:32.985752+00:00 heroku[router]: at=info method=GET path="/favicon.ico" host=stark-falls-63733.herokuapp.com request_id=f13fa5bf-5f2f-48f7-92eb-ff09beb5919d fwd="86.44.57.230" dyno=web.1 connect=0ms service=8ms status=200 bytes=143 
2016-11-09T18:52:37.881288+00:00 heroku[router]: at=info method=GET path="/users" host=stark-falls-63733.herokuapp.com request_id=e3d2067c-b093-41e0-9d6f-72a68f172edf fwd="86.44.57.230" dyno=web.1 connect=0ms service=50ms status=200 bytes=3208 
2016-11-09T18:52:42.036223+00:00 heroku[router]: at=info method=GET path="/projects" host=stark-falls-63733.herokuapp.com request_id=df869638-2c3a-40ac-b0a7-ba4a3190cdd6 fwd="86.44.57.230" dyno=web.1 connect=0ms service=17ms status=500 bytes=1669 
2016-11-09T18:53:01.489311+00:00 heroku[router]: at=info method=GET path="/projects" host=stark-falls-63733.herokuapp.com request_id=dd949ce7-bfb1-422b-81fd-8ebc02540e71 fwd="86.44.57.230" dyno=web.1 connect=1ms service=71ms status=500 bytes=1669 
2016-11-09T19:13:01.823684+00:00 heroku[router]: at=info method=GET path="/projects" host=stark-falls-63733.herokuapp.com request_id=62e72010-b749-4a8e-9f5d-3ee2550e4eb5 fwd="86.44.57.230" dyno=web.1 connect=0ms service=21ms status=500 bytes=1669 
2016-11-09T19:24:19.274988+00:00 heroku[api]: Starting process with command `bundle exec rake db:migrate` by [email protected] 
2016-11-09T19:24:25.388503+00:00 heroku[run.8672]: Awaiting client 
2016-11-09T19:24:25.463637+00:00 heroku[run.8672]: Starting process with command `bundle exec rake db:migrate` 
2016-11-09T19:24:25.535795+00:00 heroku[run.8672]: State changed from starting to up 
2016-11-09T19:24:33.095488+00:00 heroku[run.8672]: Process exited with status 0 
2016-11-09T19:24:33.081820+00:00 heroku[run.8672]: State changed from up to complete 
2016-11-09T19:25:12.201241+00:00 heroku[router]: at=info method=GET path="/projects" host=stark-falls-63733.herokuapp.com request_id=529aeacd-e9b9-4b96-a2d7-34ddb5d3896e fwd="86.44.57.230" dyno=web.1 connect=0ms service=14ms status=500 bytes=1669 
2016-11-09T19:25:12.469696+00:00 heroku[router]: at=info method=GET path="/favicon.ico" host=stark-falls-63733.herokuapp.com request_id=99e6fa84-47c2-4ae4-86cc-9f4e9f36ca16 fwd="86.44.57.230" dyno=web.1 connect=0ms service=2ms status=304 bytes=48 
2016-11-09T19:28:30.885743+00:00 heroku[api]: Starting process with command `rails consoe` by [email protected] 
2016-11-09T19:28:35.368273+00:00 heroku[run.7002]: Awaiting client 
2016-11-09T19:28:35.393535+00:00 heroku[run.7002]: Starting process with command `rails consoe` 
2016-11-09T19:28:35.539374+00:00 heroku[run.7002]: State changed from starting to up 
2016-11-09T19:28:38.853885+00:00 heroku[run.7002]: State changed from up to complete 
2016-11-09T19:28:38.878693+00:00 heroku[run.7002]: Process exited with status 1 
2016-11-09T19:28:46.270972+00:00 heroku[api]: Starting process with command `rails console` by [email protected] 
2016-11-09T19:28:51.734321+00:00 heroku[run.9640]: Awaiting client 
2016-11-09T19:28:51.769438+00:00 heroku[run.9640]: Starting process with command `rails console` 
2016-11-09T19:28:51.802682+00:00 heroku[run.9640]: State changed from starting to up 
2016-11-09T19:29:03.378053+00:00 heroku[run.9640]: Process exited with status 0 
2016-11-09T19:29:03.393812+00:00 heroku[run.9640]: State changed from up to complete 
2016-11-09T19:29:16.843286+00:00 heroku[web.1]: Restarting 
2016-11-09T19:29:16.843982+00:00 heroku[web.1]: State changed from up to starting 
2016-11-09T19:29:20.220947+00:00 heroku[web.1]: Stopping all processes with SIGTERM 
2016-11-09T19:29:21.247977+00:00 app[web.1]: - Gracefully stopping, waiting for requests to finish 
2016-11-09T19:29:21.248148+00:00 app[web.1]: === puma shutdown: 2016-11-09 19:29:21 +0000 === 
2016-11-09T19:29:21.248152+00:00 app[web.1]: - Goodbye! 
2016-11-09T19:29:21.248232+00:00 app[web.1]: Exiting 
2016-11-09T19:29:21.388099+00:00 heroku[web.1]: Process exited with status 0 
2016-11-09T19:29:21.832713+00:00 heroku[web.1]: Starting process with command `bin/rails server -p 21042 -e production` 
2016-11-09T19:29:25.892825+00:00 app[web.1]: => Booting Puma 
2016-11-09T19:29:25.892864+00:00 app[web.1]: => Rails 5.0.0.1 application starting in production on http://0.0.0.0:21042 
2016-11-09T19:29:25.892865+00:00 app[web.1]: => Run `rails server -h` for more startup options 
2016-11-09T19:29:26.922809+00:00 heroku[web.1]: State changed from starting to up 
2016-11-09T19:29:26.844730+00:00 app[web.1]: Puma starting in single mode... 
2016-11-09T19:29:26.844748+00:00 app[web.1]: * Version 3.4.0 (ruby 2.2.4-p230), codename: Owl Bowl Brawl 
2016-11-09T19:29:26.844749+00:00 app[web.1]: * Min threads: 0, max threads: 16 
2016-11-09T19:29:26.844750+00:00 app[web.1]: * Environment: production 
2016-11-09T19:29:26.844827+00:00 app[web.1]: * Listening on tcp://0.0.0.0:21042 
2016-11-09T19:29:26.845007+00:00 app[web.1]: Use Ctrl-C to stop 
2016-11-09T19:29:28.618363+00:00 heroku[router]: at=info method=GET path="/projects" host=stark-falls-63733.herokuapp.com request_id=ae553309-c165-4526-b443-fd098df71c47 fwd="86.44.57.230" dyno=web.1 connect=1ms service=139ms status=500 bytes=1669 
2016-11-09T19:29:28.754190+00:00 heroku[router]: at=info method=GET path="/favicon.ico" host=stark-falls-63733.herokuapp.com request_id=453d6e7f-b4e8-4337-9340-84cb8dcaa95f fwd="86.44.57.230" dyno=web.1 connect=1ms service=3ms status=200 bytes=143 
2016-11-09T19:29:28.910252+00:00 heroku[router]: at=info method=GET path="/favicon.ico" host=stark-falls-63733.herokuapp.com request_id=79a6c43e-1ef3-4467-a60e-2c83d7ae0e83 fwd="86.44.57.230" dyno=web.1 connect=1ms service=2ms status=200 bytes=143 
2016-11-09T19:29:30.017146+00:00 heroku[router]: at=info method=GET path="/favicon.ico" host=stark-falls-63733.herokuapp.com request_id=0dcba4a6-2113-437c-acb3-4383f16dd191 fwd="104.131.194.174" dyno=web.1 connect=0ms service=1ms status=200 bytes=143

これは私のインデックスビューです。

<% provide(:title, 'All Projects') %> 

<h1>All Projects</h1> 
    <table> 
    <tbody> 
    <tr> 
     <td> 
     <div class="dropdown"> 
      <button class="btn btn-default dropdown-toggle" type="button" 
      data-toggle="dropdown">Filter by Team<span class="caret"></span></button> 
      <ul class="dropdown-menu"> 
      <% Team.all.each do |team| %> 
      <li> 
       <%= link_to team.tName, projects_path(team: team.tName), class: "link" %> 
      </li> 
      <li class="<%= 'active' if params[:team] == team.tName %>"> 
      <% end %> 
      </ul> 
     </div> 
     </td> 
    </tr> 

    <tr> 
     <td> 
     <div> 
      <button type="button" class="btn btn-default"><%= link_to "Remove Team Filters", projects_path, class: "link" %></button> 
     </div> 
     </td> 
    </tr> 
    </tbody> 
    </table> 





<ul class="users"> 
    <%= render 'projects/projectindex' %> 
</ul>

そして、レンダリングされた部分は次のとおりです。

<% @projects.each do |project| %> 
<h2><%= params[:team] %></h2> 
     <% if @projects.count == 0 %> 
      <h2>There are no projects currently in this category</h2> 
     <% end %> 
     <li> 
      Title: <%= project.title %><br> 

      Team: <%= project.team.tName%><br> 

      Description: <%= project.description %><br> 

      Status:<%= project.status %><br> 

      Type: <%= project.p_type %><br> 

      Updated: <%= time_ago_in_words(project.updated_at) %> ago. 
     </li> 
<% end %>

任意のアイデア私は問題を解決することができますか？

ありがとうございます。

出典

2016-11-09 Alessia

他のページは正常に動作しますが、この問題は 'projects＃index'でのみ発生しますか？ –

申し訳ありませんが、それを追加してください！はい、他のすべてが完璧に動作します。この問題は、プロジェクトの＃indexとherokuでのみ発生します。 – Alessia

問題を示すエラーログは表示されていませんか？多分問題は 'project.team.tName'です。プロジェクトにチームがない場合、 'project.team'は_nil_を返し、' nil.tName'はnil： 'NilClass'の'未定義メソッド 'tNameを送出します。 –

だから、すべてがローカルで働いていたので、すでに作成したプロジェクトのような新しいモデルを追加して作業を続けました。私はHerokuのにすべてをプッシュして、前と同じ手順に従う：

git push heroku 
heroku pg:reset DATABASE 
heroku run rails db:migrate 
heroku run rails db:seed 
heroku restart

私はHerokuのサイトに行ったとき、プロジェクトのインデックスページ上のエラーはもはや発生しませんでした。新しいモデルがプロジェクトのものとは独立しているので、私はプロジェクトのページで何も触れていませんでした...私は本当に理由はわかりません！

助けを借りて、誰かのために私の質問を読むために時間を割いた@ルーカスコスタに感謝します。

出典

2016-11-10 19:57:46 Alessia

Heroku - 残念ですが、何かが間違っていた - Herokuでのみ発生した問題がローカルではありません

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