【Docker, React, Rails】uninitialized constant Gem::Source (NameError)について

エラー内容

こちらの【備忘録】【環境構築】Docker + Ruby on Rails + ReactでSPA化の記事を参考に環境構築
$ docker-compose run backend rails new . --force --no-deps --database=postgresql --apiを入力したタイミングで、以下のエラーが発生
エラー内容
- uninitialized constant Gem::Source (NameError)
- (defined?(@source) && @source) || Gem::Source::Installed.new

対応内容

【Docker】NameError: uninitialized constant Gem::Source 解消法【Rails】を参考に対応するも、解決できず

解決策

$ docker-compose run backend rails new . --force --no-deps --database=postgresql --apiのコマンドを入力
エラーで落ちるが、そのままdocker-compose bulid
- bundler周りの不具合ではなく、シンプルにbundle installされていないため、落ちてしまっていた。
そのままcreate-react-appのコマンドを実行→環境構築成功

エラーログ

コード

エラーログ

[shinjiasai@ShinjinoMacBook-Pro:~/Project/delivery_order]
$ docker-compose run backend rails new . --force --no-deps --database=postgresql --api
WARN[0000] Found orphan containers ([delivery_order_web_run_ef3563137a6d delivery_order_web_run_8f8d1cac90b2]) for this project. If you removed or renamed this service in your compose file, you can run this command with the --remove-orphans flag to clean it up. 
[+] Running 1/0
 ⠿ Container delivery_order-db-1  Running                                                                                                                                                                                                                                                                              0.0s
       exist  
      create  README.md
      create  Rakefile
      create  .ruby-version
      create  config.ru
      create  .gitignore
      create  .gitattributes
       force  Gemfile
         run  git init from "."
hint: Using 'master' as the name for the initial branch. This default branch name
hint: is subject to change. To configure the initial branch name to use in all
hint: of your new repositories, which will suppress this warning, call:
hint: 
hint:   git config --global init.defaultBranch 
hint: 
hint: Names commonly chosen instead of 'master' are 'main', 'trunk' and
hint: 'development'. The just-created branch can be renamed via this command:
hint: 
hint:   git branch -m 
Initialized empty Git repository in /myapp/.git/
      create  app
      create  app/assets/config/manifest.js 
      ...中略...
      remove  config/initializers/new_framework_defaults_7_0.rb
         run  bundle install
[12, #, #, ["/usr/local/lib/ruby/3.1.0/bundler/rubygems_ext.rb:18:in `source'", "/usr/local/lib/ruby/3.1.0/bundler/rubygems_ext.rb:50:in `extension_dir'", 
...中略...
"/usr/local/lib/ruby/3.1.0/bundler/cli.rb:25:in `start'", "/usr/local/lib/ruby/gems/3.1.0/gems/bundler-2.3.7/libexec/bundle:48:in `block in'", 
"/usr/local/lib/ruby/3.1.0/bundler/friendly_errors.rb:103:in `with_friendly_errors'", "/usr/local/lib/ruby/gems/3.1.0/gems/bundler-2.3.7/libexec/bundle:36:in ` /usr/local/lib/ruby/3.1.0/bundler/rubygems_ext.rb:18:in `source': uninitialized constant Gem::Source (NameError) (defined?(@source) && @source) || Gem::Source::Installed.new ^^^^^^^^ Did you mean? Gem::SourceList from /usr/local/lib/ruby/3.1.0/bundler/rubygems_ext.rb:50:in `extension_dir' from ...省略...