herokuにrailsアプリがデプロイできなくなりました。<Ruby on Rails チュートリアル>

Question

###前提・実現したいこと
『Ruby on Rails チュートリアル 第4版』の13章の最後のデプロイができません。
リンク

現在、AWSのS3を使用して画像投稿ができるようにしようとしているのですが、
デプロイ時に以下のようなエラーがでてしまいます。

ArgumentError: Missing required arguments: aws_access_key_id, aws_secret_access_key

herokuの環境変数がきちんと設定されていないと思ったのですが、
herokuのダッシュボードで環境変数を確認しても問題ありませんでした。

$ heroku configで表示された環境変数の該当部分（一部隠しています）

S3_ACCESS_KEY:            AKIAIJGRUFHLK2NOQLEQ
S3_BUCKET:                y*****
S3_REGION:                ap-northeast-1
S3_SECRET_KEY:            6yl*********************************75P

AWSのIAMのユーザー認証情報ページのキャプチャ

config/initializers/carrier_wave.rb

if Rails.env.production?
  CarrierWave.configure do |config|
    config.fog_credentials = {
      # Amazon S3用の設定
      :provider              => 'AWS',
      :region                => ENV['ap-northeast-1'],
      :aws_access_key_id     => ENV['AKIAIJGRUFHLK2NOQLEQ'],
      :aws_secret_access_key => ENV['6yl*********************************75P']
    }
    config.fog_directory     =  ENV['y*****']
  end
end

###デプロイ時のログ

~~~~~~~~~~~~~~~中略~~~~~~~~~~~~~~~

       Fetching fog 1.40.0
       Installing fog 1.40.0
       Bundle complete! 27 Gemfile dependencies, 105 gems now installed.
       Gems in the groups development and test were not installed.
       Bundled gems are installed into ./vendor/bundle.
       Post-install message from fog:
       ------------------------------
       Thank you for installing fog!
       IMPORTANT NOTICE:
       If there's a metagem available for your cloud provider, e.g. `fog-aws`,
       you should be using it instead of requiring the full fog collection to avoid
       unnecessary dependencies.
       'fog' should be required explicitly only if:
       - The provider you use doesn't yet have a metagem available.
       - You require Ruby 1.9.3 support.
       ------------------------------
       The latest bundler is 1.15.3, but you are currently running 1.15.2.
       To update, run `gem install bundler`
       Bundle completed (8.53s)
       Cleaning up the bundler cache.
       Warning: the running version of Bundler (1.15.2) is older than the version that created the lockfile (1.15.3). We suggest you upgrade to the latest version of Bundler by running `gem install bundler`.
       Removing autoprefixer-rails (7.1.2.3)
       The latest bundler is 1.15.3, but you are currently running 1.15.2.
       To update, run `gem install bundler`
-----> Installing node-v6.11.1-linux-x64
-----> Detecting rake tasks
-----> Preparing app for Rails asset pipeline
       Running: rake assets:precompile
       rake aborted!
       ArgumentError: Missing required arguments: aws_access_key_id, aws_secret_access_key
       /tmp/build_0fe0edfbac2460d8059213ba86165136/vendor/bundle/ruby/2.3.0/gems/fog-core-1.45.0/lib/fog/core/service.rb:244:in `validate_options'
       /tmp/build_0fe0edfbac2460d8059213ba86165136/vendor/bundle/ruby/2.3.0/gems/fog-core-1.45.0/lib/fog/core/service.rb:268:in `handle_settings'
       /tmp/build_0fe0edfbac2460d8059213ba86165136/vendor/bundle/ruby/2.3.0/gems/fog-core-1.45.0/lib/fog/core/service.rb:98:in `new'
       /tmp/build_0fe0edfbac2460d8059213ba86165136/vendor/bundle/ruby/2.3.0/gems/fog-core-1.45.0/lib/fog/core/services_mixin.rb:16:in `new'
       /tmp/build_0fe0edfbac2460d8059213ba86165136/vendor/bundle/ruby/2.3.0/gems/fog-core-1.45.0/lib/fog/storage.rb:27:in `new'
       /tmp/build_0fe0edfbac2460d8059213ba86165136/vendor/bundle/ruby/2.3.0/gems/carrierwave-1.1.0/lib/carrierwave/uploader/configuration.rb:124:in `eager_load_fog'
       /tmp/build_0fe0edfbac2460d8059213ba86165136/vendor/bundle/ruby/2.3.0/gems/carrierwave-1.1.0/lib/carrierwave/uploader/configuration.rb:137:in `fog_credentials='
       /tmp/build_0fe0edfbac2460d8059213ba86165136/config/initializers/carrier_wave.rb:3:in `block in <top (required)>'
       /tmp/build_0fe0edfbac2460d8059213ba86165136/vendor/bundle/ruby/2.3.0/gems/carrierwave-1.1.0/lib/carrierwave/uploader/configuration.rb:159:in `configure'
       /tmp/build_0fe0edfbac2460d8059213ba86165136/vendor/bundle/ruby/2.3.0/gems/carrierwave-1.1.0/lib/carrierwave.rb:14:in `configure'
       /tmp/build_0fe0edfbac2460d8059213ba86165136/config/initializers/carrier_wave.rb:2:in `<top (required)>'
       /tmp/build_0fe0edfbac2460d8059213ba86165136/vendor/bundle/ruby/2.3.0/gems/activesupport-5.0.3/lib/active_support/dependencies.rb:287:in `load'
       /tmp/build_0fe0edfbac2460d8059213ba86165136/vendor/bundle/ruby/2.3.0/gems/activesupport-5.0.3/lib/active_support/dependencies.rb:287:in `block in load'
       /tmp/build_0fe0edfbac2460d8059213ba86165136/vendor/bundle/ruby/2.3.0/gems/activesupport-5.0.3/lib/active_support/dependencies.rb:259:in `load_dependency'
       /tmp/build_0fe0edfbac2460d8059213ba86165136/vendor/bundle/ruby/2.3.0/gems/activesupport-5.0.3/lib/active_support/dependencies.rb:287:in `load'
       /tmp/build_0fe0edfbac2460d8059213ba86165136/vendor/bundle/ruby/2.3.0/gems/railties-5.0.3/lib/rails/engine.rb:648:in `block in load_config_initializer'
       /tmp/build_0fe0edfbac2460d8059213ba86165136/vendor/bundle/ruby/2.3.0/gems/activesupport-5.0.3/lib/active_support/notifications.rb:166:in `instrument'
       /tmp/build_0fe0edfbac2460d8059213ba86165136/vendor/bundle/ruby/2.3.0/gems/railties-5.0.3/lib/rails/engine.rb:647:in `load_config_initializer'
       /tmp/build_0fe0edfbac2460d8059213ba86165136/vendor/bundle/ruby/2.3.0/gems/railties-5.0.3/lib/rails/engine.rb:612:in `block (2 levels) in <class:Engine>'
       /tmp/build_0fe0edfbac2460d8059213ba86165136/vendor/bundle/ruby/2.3.0/gems/railties-5.0.3/lib/rails/engine.rb:611:in `each'
       /tmp/build_0fe0edfbac2460d8059213ba86165136/vendor/bundle/ruby/2.3.0/gems/railties-5.0.3/lib/rails/engine.rb:611:in `block in <class:Engine>'
       /tmp/build_0fe0edfbac2460d8059213ba86165136/vendor/bundle/ruby/2.3.0/gems/railties-5.0.3/lib/rails/initializable.rb:30:in `instance_exec'
       /tmp/build_0fe0edfbac2460d8059213ba86165136/vendor/bundle/ruby/2.3.0/gems/railties-5.0.3/lib/rails/initializable.rb:30:in `run'
       /tmp/build_0fe0edfbac2460d8059213ba86165136/vendor/bundle/ruby/2.3.0/gems/railties-5.0.3/lib/rails/initializable.rb:55:in `block in run_initializers'
       /tmp/build_0fe0edfbac2460d8059213ba86165136/vendor/bundle/ruby/2.3.0/gems/railties-5.0.3/lib/rails/initializable.rb:44:in `each'
       /tmp/build_0fe0edfbac2460d8059213ba86165136/vendor/bundle/ruby/2.3.0/gems/railties-5.0.3/lib/rails/initializable.rb:44:in `tsort_each_child'
       /tmp/build_0fe0edfbac2460d8059213ba86165136/vendor/bundle/ruby/2.3.0/gems/railties-5.0.3/lib/rails/initializable.rb:54:in `run_initializers'
       /tmp/build_0fe0edfbac2460d8059213ba86165136/vendor/bundle/ruby/2.3.0/gems/railties-5.0.3/lib/rails/application.rb:352:in `initialize!'
       /tmp/build_0fe0edfbac2460d8059213ba86165136/config/environment.rb:5:in `<top (required)>'
       /tmp/build_0fe0edfbac2460d8059213ba86165136/vendor/bundle/ruby/2.3.0/gems/railties-5.0.3/lib/rails/application.rb:328:in `require'
       /tmp/build_0fe0edfbac2460d8059213ba86165136/vendor/bundle/ruby/2.3.0/gems/railties-5.0.3/lib/rails/application.rb:328:in `require_environment!'
       /tmp/build_0fe0edfbac2460d8059213ba86165136/vendor/bundle/ruby/2.3.0/gems/railties-5.0.3/lib/rails/application.rb:448:in `block in run_tasks_blocks'
       /tmp/build_0fe0edfbac2460d8059213ba86165136/vendor/bundle/ruby/2.3.0/gems/sprockets-rails-3.2.0/lib/sprockets/rails/task.rb:62:in `block (2 levels) in define'
       /tmp/build_0fe0edfbac2460d8059213ba86165136/vendor/bundle/ruby/2.3.0/gems/rake-12.0.0/exe/rake:27:in `<top (required)>'
       Tasks: TOP => environment
       (See full trace by running task with --trace)
 !
 !     Precompiling assets failed.
 !
 !     Push rejected, failed to compile Ruby app.
 !     Push failed

###Gemfile

source 'https://rubygems.org'

gem 'rails',        '5.0.3'
gem 'bcrypt',         '3.1.11'
gem 'faker',          '1.7.3'
gem 'carrierwave',             '1.1.0'
gem 'mini_magick',             '4.7.0'
gem 'fog',                     '1.40.0'
gem 'will_paginate',           '3.1.5'
gem 'bootstrap-will_paginate', '1.0.0'
gem 'bootstrap-sass', '3.3.7'
gem 'puma',         '3.9.1'
gem 'sass-rails',   '5.0.6'
gem 'uglifier',     '3.2.0'
gem 'coffee-rails', '4.2.2'
gem 'jquery-rails', '4.3.1'
gem 'turbolinks',   '5.0.1'
gem 'jbuilder',     '2.6.1'

group :development, :test do
  gem 'sqlite3', '1.3.13'
  gem 'byebug',  '9.0.6', platform: :mri
end

group :development do
  gem 'web-console',           '3.5.1'
  gem 'listen',                '3.0.8'
  gem 'spring',                '2.0.2'
  gem 'spring-watcher-listen', '2.0.1'
end

group :test do
  gem 'rails-controller-testing', '1.0.2'
  gem 'minitest-reporters',       '1.1.14'
  gem 'guard',                    '2.13.0'
  gem 'guard-minitest',           '2.4.4'
end

group :production do
  gem 'pg', '0.18.4'
end

###試したこと
どこでみたか忘れてしまったのですが、Gemfile.lockを削除してから
bundle installをするとできたというのを見たので試したのですが、できませんでした。

どうかよろしくお願いいたします。

Comments

[gouf]

ENV['...'] で指定している部分、heroku configで設定した一覧にある対応に倣って、ENV['S3_SECRET_KEY'] などに変更した場合に、変化は見られますか?

[u310ai]

できました！
環境変数を参照するんですね！
置き換えかと勘違いをしておりました。
有難うございました！

Answer 1

環境変数は

ENV['S3_BUCKET']のように記述するのでは？

Comments

[u310ai]

できました！
環境変数を参照するんですね！
置き換えかと勘違いをしておりました。
有難うございました！