Heroku deployは成功するのですが、App crashedというErrorでアプリが開けないです(code=H10) (syntax error)

Question

Herokuにデプロイ後、下記のエラーが発生します。

前提・したこと

• ローカルでアプリ制作
• Heroku CLIをインストール

$ curl -OL https://cli-assets.heroku.com/heroku-linux-x64.tar.gz
tar zxf heroku-linux-x64.tar.gz && rm -f heroku-linux-x64.tar.gz
sudo mv heroku /usr/local
echo 'PATH=/usr/local/heroku/bin:$PATH' >> $HOME/.bash_profile
source $HOME/.bash_profile > /dev/null

• rails_12factor　をGemに追加

group :production do
  gem 'rails_12factor'
end

• Git経由でアプリケーションを登録

1. $ git init
2. $ heroku create
3. $ heroku addons:add cleardb
4. $ heroku config | grep CLEARDB_DATABASE_URL
5. 環境変数を変更

出力されたデータベース情報のmysqlの部分をmysql2に変更して、heroku config:setコマンドで設定を上書き
0. $ git add .
0. $ git commit -m "update for upload to heroku"
0. $ git push heroku master
0. こちらを参考にRails+CarrierWave+heroku環境でAWS S3へ画像をアップロードする処理を実行

処理後、更新するとApplication errorが発生。

発生している問題・エラーメッセージ

$ heroku logs --tail
(省略)

2020-08-08T07:19:47.840938+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/rack-2.2.3/lib/rack/server.rb:312:in `block in start'
2020-08-08T07:19:47.840938+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/rack-2.2.3/lib/rack/server.rb:379:in `handle_profiling'
2020-08-08T07:19:47.840938+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/rack-2.2.3/lib/rack/server.rb:311:in `start'
2020-08-08T07:19:47.840940+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/railties-5.2.4.3/lib/rails/commands/server/server_command.rb:53:in `start'
2020-08-08T07:19:47.840942+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/railties-5.2.4.3/lib/rails/commands/server/server_command.rb:147:in `block in perform'
2020-08-08T07:19:47.840956+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/railties-5.2.4.3/lib/rails/commands/server/server_command.rb:142:in `tap'
2020-08-08T07:19:47.840957+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/railties-5.2.4.3/lib/rails/commands/server/server_command.rb:142:in `perform'
2020-08-08T07:19:47.840957+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/thor-1.0.1/lib/thor/command.rb:27:in `run'
2020-08-08T07:19:47.840959+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/thor-1.0.1/lib/thor/invocation.rb:127:in `invoke_command'
2020-08-08T07:19:47.840961+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/thor-1.0.1/lib/thor.rb:392:in `dispatch'
2020-08-08T07:19:47.840962+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/railties-5.2.4.3/lib/rails/command/base.rb:69:in `perform'
2020-08-08T07:19:47.840982+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/railties-5.2.4.3/lib/rails/command.rb:46:in `invoke'
2020-08-08T07:19:47.840983+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/railties-5.2.4.3/lib/rails/commands.rb:18:in `<top (required)>'
2020-08-08T07:19:47.840983+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/bootsnap-1.4.7/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:23:in `require'
2020-08-08T07:19:47.840984+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/bootsnap-1.4.7/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:23:in `block in require_with_bootsnap_lfi'
2020-08-08T07:19:47.840984+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/bootsnap-1.4.7/lib/bootsnap/load_path_cache/loaded_features_index.rb:92:in `register'
2020-08-08T07:19:47.840988+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/bootsnap-1.4.7/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `require_with_bootsnap_lfi'
2020-08-08T07:19:47.840988+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/bootsnap-1.4.7/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:31:in `require'
2020-08-08T07:19:47.840991+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/activesupport-5.2.4.3/lib/active_support/dependencies.rb:291:in `block in require'
2020-08-08T07:19:47.840993+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/activesupport-5.2.4.3/lib/active_support/dependencies.rb:257:in `load_dependency'
2020-08-08T07:19:47.840996+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/activesupport-5.2.4.3/lib/active_support/dependencies.rb:291:in `require'
2020-08-08T07:19:47.840998+00:00 app[web.1]: from bin/rails:9:in `<main>'
2020-08-08T07:19:47.897975+00:00 heroku[web.1]: Process exited with status 1
2020-08-08T07:19:47.930753+00:00 heroku[web.1]: State changed from starting to crashed
2020-08-08T07:42:42.316134+00:00 app[api]: Starting process with command `rails console` by user [e-mail]
2020-08-08T07:42:46.408181+00:00 heroku[run.3524]: Awaiting client
2020-08-08T07:42:46.420227+00:00 heroku[run.3524]: State changed from starting to up
2020-08-08T07:42:46.452181+00:00 heroku[run.3524]: Starting process with command `rails console`
2020-08-08T07:42:53.389723+00:00 heroku[run.3524]: Process exited with status 1
2020-08-08T07:42:53.420224+00:00 heroku[run.3524]: State changed from up to complete
2020-08-08T07:44:04.347030+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=vast-gorge-07575.herokuapp.com request_id=e7fb6888-c6c9-4e6b-a593-6c90fe855433 fwd="122.131.145.36" dyno= connect= service= status=503 bytes= protocol=https
2020-08-08T07:44:04.927751+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=vast-gorge-07575.herokuapp.com request_id=929b44d4-2427-4842-a558-7100907e34d4 fwd="122.131.145.36" dyno= connect= service= status=503 bytes= protocol=https

heroku run console　では下記の通りです

82: from bin/rails:9:in `<main>'
        81: from /app/vendor/bundle/ruby/2.5.0/gems/activesupport-5.2.4.3/lib/active_support/dependencies.rb:291:in `require'
        80: from /app/vendor/bundle/ruby/2.5.0/gems/activesupport-5.2.4.3/lib/active_support/dependencies.rb:257:in `load_dependency'
        79: from /app/vendor/bundle/ruby/2.5.0/gems/activesupport-5.2.4.3/lib/active_support/dependencies.rb:291:in `block in require'
        78: from /app/vendor/bundle/ruby/2.5.0/gems/bootsnap-1.4.7/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:31:in `require'

(省略)

 3: from /app/vendor/bundle/ruby/2.5.0/gems/activesupport-5.2.4.3/lib/active_support/lazy_load_hooks.rb:71:in `instance_eval'
         2: from /app/vendor/bundle/ruby/2.5.0/gems/activestorage-5.2.4.3/lib/active_storage/engine.rb:95:in `block (2 levels) in <class:Engine>'
         1: from /app/vendor/ruby-2.5.1/lib/ruby/2.5.0/erb.rb:876:in `result'
/app/vendor/ruby-2.5.1/lib/ruby/2.5.0/erb.rb:876:in `eval': (erb):13: syntax error, unexpected tIDENTIFIER, expecting ')' (SyntaxError)
...mUoOL3oJjcEEFvZURAsrof/7q3oYxsO) ).to_s); _erbout.<< "\n#   ...
...                        ^~~~~~~
(erb):13: syntax error, unexpected ')', expecting end-of-input
...cEEFvZURAsrof/7q3oYxsO) ).to_s); _erbout.<< "\n#   region: a...
...                              ^

「syantax error」と表示されていたので、関連してそうな周辺の文字列を検索すると
「カンマ抜け」ではないかと推測したのですが、場所が特定できませんでした。

試したこと・調べたこと

• Heroku / デプロイしたのに謎のエラーでログ見ても手がかりがない時の対処法
• HerokuでApplicationErrorが発生したときの対処法

補足情報（FW/ツールのバージョンなど）

• macOS Catalina 10.15.6
• Rails 5.2.4.3
• ruby 2.5.1p57 (2018-03-29 revision 63029) [x86_64-linux]
• heroku/7.42.5 linux-x64 node-v12.16.2
• AWS Cloud9

.
Cloud9上では問題なく起動します。DB、S3バケット内にもimageが反映されます。

問題、原因の特定に必要なファイルやコードがありましたら、ご指摘願います。
追記（8/10 12:20）

$ git push heroku master　を実行すると下記のワーニングが発生します。

remote: ###### WARNING:
remote:
remote:        Detecting rails configuration failed
remote:        set HEROKU_DEBUG_RAILS_RUNNER=1 to debug
remote:
remote: ###### WARNING:
remote:
remote:        We detected that some binary dependencies required to
remote:        use all the preview features of Active Storage are not
remote:        present on this system.
remote:
remote:        For more information please see:
remote:          https://devcenter.heroku.com/articles/active-storage-on-heroku
remote:
remote:
remote: ###### WARNING:
remote:
remote:        There is a more recent Ruby version available for you to use:
remote:
remote:        2.5.8
remote:        
remote:        The latest version will include security and bug fixes. We always recommend
remote:        running the latest version of your minor release.
remote:        
remote:        Please upgrade your Ruby version.
remote:        
remote:        For all available Ruby versions see:
remote:          https://devcenter.heroku.com/articles/ruby-support#supported-runtimes
remote: 
remote: ###### WARNING:
remote: 
remote:        No Procfile detected, using the default web server.
remote:        We recommend explicitly declaring how to boot your server process via a Procfile.
remote:        https://devcenter.heroku.com/articles/ruby-default-web-server
remote: 
remote: 
remote: -----> Discovering process types
remote:        Procfile declares types     -> (none)
remote:        Default types for buildpack -> console, rake, web
remote: 
remote: -----> Compressing...
remote:        Done: 80.3M
remote: -----> Launching...
remote:        Released v9
remote:        https://unsunghero.herokuapp.com/ deployed to Heroku
remote: 
remote: Verifying deploy... done.
To https://git.heroku.com/unsunghero.git
   ec09b30..2ae93d8  master -> master

Comments

[gouf]

「ruby -c [file name]」で構文エラーも含めてチェックができるのですが、該当しそうなファイルは見つかりますか?

Answer 1

config/storage.yml　が問題。
storage.ymlのamazonの箇所をコメントアウトを外していなかったことが原因。

amazon:
service: S3
access_key_id: <%= ENV["AWS_ACCESS_KEY_ID"] %>
secret_access_key: <%= ENV["AWS_SECRET_ACCESS_KEY"] %>
region: ap-northeast-1
bucket: <%= ENV["AWS_BUCKET"] %>