`require': cannot load such file -- mimemagic/overlay (LoadError)への対処手順

Ruby on Rails

起こったこと

  • gem 'carrierwave', '~> 2.0'をbundle installしたあとにrails g uploaderを実行するとエラーが発生した

環境

  • Docker（Ubuntu）
  • Rails 6.0.3.6
  • ruby 2.7.2
  • carrierwave 2.0
  • mimemagic 0.3

エラー解消までにやったこと

  • apt-get update shared-mime-infoでshared-mime-infoをインストール
  • apt-get upgrade shared-mime-infoでshared-mime-infoをupgrade
  • Gemfileにgem 'mimemagic', '0.3.9'を追加
  • carrierwaveを2.2にアップデート
  • Gemfile.lockのcarrierwaveが依存しているmimemagicのバージョンを(=0.3.9)に指定した
    carrierwave (2.2.0)
      activemodel (>= 5.0.0)
      activesupport (>= 5.0.0)
      addressable (~> 2.6)
      image_processing (~> 1.1)
      mimemagic (= 0.3.9)
  • 本来であればGemfile.lockを直接修正するのは推奨されていないようだが、carrierwaveが依存するmimemagicはGemfile上では修正できなかった
  • Gemfile.lockを直接修正することで、carrierwaveの依存先のmimemagicのバージョンを手動で変更できた
  • bundle update mimemagicでmimemagicをアップデート

エラーメッセージ

root@e816625f7a06:/apps/techpit-match# rails g uploader ProfileImage
/usr/local/bundle/gems/bootsnap-1.7.3/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:23:in `require': cannot load such file -- mimemagic/overlay (LoadError)
        from /usr/local/bundle/gems/bootsnap-1.7.3/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:23:in `block in require_with_bootsnap_lfi'
        from /usr/local/bundle/gems/bootsnap-1.7.3/lib/bootsnap/load_path_cache/loaded_features_index.rb:89:in `register'
        from /usr/local/bundle/gems/bootsnap-1.7.3/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `require_with_bootsnap_lfi'
        from /usr/local/bundle/gems/bootsnap-1.7.3/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:44:in `require'
        from /usr/local/bundle/gems/activesupport-6.0.3.6/lib/active_support/dependencies.rb:324:in `block in require'
        from /usr/local/bundle/gems/activesupport-6.0.3.6/lib/active_support/dependencies.rb:291:in `load_dependency'
        from /usr/local/bundle/gems/activesupport-6.0.3.6/lib/active_support/dependencies.rb:324:in `require'
        from /usr/local/bundle/gems/carrierwave-2.2.0/lib/carrierwave/sanitized_file.rb:5:in `<main>'
        from /usr/local/bundle/gems/bootsnap-1.7.3/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:23:in `require'
        from /usr/local/bundle/gems/bootsnap-1.7.3/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:23:in `block in require_with_bootsnap_lfi'
        from /usr/local/bundle/gems/bootsnap-1.7.3/lib/bootsnap/load_path_cache/loaded_features_index.rb:92:in `register'
        from /usr/local/bundle/gems/bootsnap-1.7.3/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `require_with_bootsnap_lfi'
        from /usr/local/bundle/gems/bootsnap-1.7.3/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:31:in `require'
        from /usr/local/bundle/gems/activesupport-6.0.3.6/lib/active_support/dependencies.rb:324:in `block in require'
        from /usr/local/bundle/gems/activesupport-6.0.3.6/lib/active_support/dependencies.rb:291:in `load_dependency'
        from /usr/local/bundle/gems/activesupport-6.0.3.6/lib/active_support/dependencies.rb:324:in `require'
        from /usr/local/bundle/gems/carrierwave-2.2.0/lib/carrierwave.rb:99:in `<main>'
        from /usr/local/bundle/gems/bootsnap-1.7.3/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:23:in `require'
        from /usr/local/bundle/gems/bootsnap-1.7.3/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:23:in `block in require_with_bootsnap_lfi'
        from /usr/local/bundle/gems/bootsnap-1.7.3/lib/bootsnap/load_path_cache/loaded_features_index.rb:92:in `register'
        from /usr/local/bundle/gems/bootsnap-1.7.3/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `require_with_bootsnap_lfi'
        from /usr/local/bundle/gems/bootsnap-1.7.3/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:31:in `require'
        from /usr/local/lib/ruby/2.7.0/bundler/runtime.rb:74:in `block (2 levels) in require'
        from /usr/local/lib/ruby/2.7.0/bundler/runtime.rb:69:in `each'
        from /usr/local/lib/ruby/2.7.0/bundler/runtime.rb:69:in `block in require'
        from /usr/local/lib/ruby/2.7.0/bundler/runtime.rb:58:in `each'
        from /usr/local/lib/ruby/2.7.0/bundler/runtime.rb:58:in `require'
        from /usr/local/lib/ruby/2.7.0/bundler.rb:174:in `require'
        from /apps/techpit-match/config/application.rb:7:in `<top (required)>'
        from /usr/local/bundle/gems/spring-2.1.1/lib/spring/application.rb:92:in `require'
        from /usr/local/bundle/gems/spring-2.1.1/lib/spring/application.rb:92:in `preload'
        from /usr/local/bundle/gems/spring-2.1.1/lib/spring/application.rb:157:in `serve'
        from /usr/local/bundle/gems/spring-2.1.1/lib/spring/application.rb:145:in `block in run'
        from /usr/local/bundle/gems/spring-2.1.1/lib/spring/application.rb:139:in `loop'
        from /usr/local/bundle/gems/spring-2.1.1/lib/spring/application.rb:139:in `run'
        from /usr/local/bundle/gems/spring-2.1.1/lib/spring/application/boot.rb:19:in `<top (required)>'
        from /usr/local/lib/ruby/2.7.0/rubygems/core_ext/kernel_require.rb:72:in `require'
        from /usr/local/lib/ruby/2.7.0/rubygems/core_ext/kernel_require.rb:72:in `require'
        from -e:1:in `<main>'

原因詳細

原因詳細は以下の記事を参照。

mimemagicに含まれるshared-mime-infoがGPL2.0だっため、これを取り除いたことによって、MITになった。 しかし、それを自分でインストールしないといけなくなった。