rails server が起動しない（環境構築時）

Question

前提・実現したいこと

https://prog-8.com/docs/rails-env
本日初めて、rbuy on railsを使ってみようと考え、progateのインストール方法を参考にインストールしたみました。

しかし、「ローカルでRailsサーバーを立てるの部分までいき、「rails s」を実行したところ、サーバーが立たず以下のエラーが出ました。

どなたか解決方法を教えていただけませんでしょうか。

こちら（https://teratail.com/questions/229914）の質問でも同じ内容がありましたが、この通りにやってみてみも起動しませんでした。。

よろしく意願いたします。

発生している問題・エラーメッセージ

[WARNING] Could not load command "rails/commands/server/server_command". Error: uninitialized constant URI::Generic.
/Users/yudai/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/active_support.rb:79:in `block in load_missing_constant'
/Users/yudai/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/active_support.rb:8:in `without_bootsnap_cache'
/Users/yudai/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/active_support.rb:79:in `rescue in load_missing_constant'
/Users/yudai/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/active_support.rb:58:in `load_missing_constant'
/Users/yudai/.rbenv/versions/2.5.0/lib/ruby/2.5.0/uri/ftp.rb:23:in `<module:URI>'
・
・
(中略）
・
・
/Users/yudai/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
/Users/yudai/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/railties-5.2.4.1/lib/rails/railtie.rb:223:in `config'
/Users/yudai/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/railties-5.2.4.1/lib/rails/railtie.rb:127:in `config'
/Users/yudai/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/activesupport-5.2.4.1/lib/active_support/i18n_railtie.rb:11:in `<class:Railtie>'
/Users/yudai/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/activesupport-5.2.4.1/lib/active_support/i18n_railtie.rb:10:in `<module:I18n>'
/Users/yudai/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/activesupport-5.2.4.1/lib/active_support/i18n_railtie.rb:9:in `<top (required)>'
/Users/yudai/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `require'
/Users/yudai/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `block in require_with_bootsnap_lfi'
/Users/yudai/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/loaded_features_index.rb:92:in `register'
/Users/yudai/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in `require_with_bootsnap_lfi'
/Users/yudai/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
/Users/yudai/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/activesupport-5.2.4.1/lib/active_support/railtie.rb:4:in `<top (required)>'
/Users/yudai/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `require'
/Users/yudai/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `block in require_with_bootsnap_lfi'
/Users/yudai/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/loaded_features_index.rb:92:in `register'
/Users/yudai/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in `require_with_bootsnap_lfi'
/Users/yudai/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
/Users/yudai/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/railties-5.2.4.1/lib/rails.rb:17:in `<top (required)>'
/Users/yudai/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `require'
/Users/yudai/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `block in require_with_bootsnap_lfi'
/Users/yudai/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/loaded_features_index.rb:92:in `register'
/Users/yudai/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in `require_with_bootsnap_lfi'
/Users/yudai/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
/Users/yudai/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/railties-5.2.4.1/lib/rails/commands/server/server_command.rb:6:in `<top (required)>'
/Users/yudai/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `require'
/Users/yudai/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `block in require_with_bootsnap_lfi'
/Users/yudai/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/loaded_features_index.rb:92:in `register'
/Users/yudai/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in `require_with_bootsnap_lfi'
/Users/yudai/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
/Users/yudai/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/railties-5.2.4.1/lib/rails/command/behavior.rb:84:in `block (2 levels) in lookup'
/Users/yudai/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/railties-5.2.4.1/lib/rails/command/behavior.rb:80:in `each'
/Users/yudai/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/railties-5.2.4.1/lib/rails/command/behavior.rb:80:in `block in lookup'
/Users/yudai/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/railties-5.2.4.1/lib/rails/command/behavior.rb:79:in `each'
/Users/yudai/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/railties-5.2.4.1/lib/rails/command/behavior.rb:79:in `lookup'
/Users/yudai/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/railties-5.2.4.1/lib/rails/command.rb:70:in `find_by_namespace'
/Users/yudai/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/railties-5.2.4.1/lib/rails/command.rb:44:in `invoke'
/Users/yudai/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/railties-5.2.4.1/lib/rails/commands.rb:18:in `<top (required)>'
/Users/yudai/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `require'
/Users/yudai/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `block in require_with_bootsnap_lfi'
/Users/yudai/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/loaded_features_index.rb:92:in `register'
/Users/yudai/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in `require_with_bootsnap_lfi'
/Users/yudai/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
/Users/yudai/Desktop/sample_app/bin/rails:9:in `<top (required)>'
/Users/yudai/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/spring-2.1.0/lib/spring/client/rails.rb:28:in `load'
/Users/yudai/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/spring-2.1.0/lib/spring/client/rails.rb:28:in `call'
/Users/yudai/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/spring-2.1.0/lib/spring/client/command.rb:7:in `call'
/Users/yudai/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/spring-2.1.0/lib/spring/client.rb:30:in `run'
/Users/yudai/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/spring-2.1.0/bin/spring:49:in `<top (required)>'
/Users/yudai/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/spring-2.1.0/lib/spring/binstub.rb:11:in `load'
/Users/yudai/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/spring-2.1.0/lib/spring/binstub.rb:11:in `<top (required)>'
/Users/yudai/.rbenv/versions/2.5.0/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:59:in `require'
/Users/yudai/.rbenv/versions/2.5.0/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:59:in `require'
/Users/yudai/Desktop/sample_app/bin/spring:15:in `<top (required)>'
bin/rails:3:in `load'
bin/rails:3:in `<main>'
/Users/yudai/.rbenv/versions/2.5.0/lib/ruby/2.5.0/uri.rb:99: warning: already initialized constant URI::VERSION_CODE
/Users/yudai/.rbenv/versions/2.5.0/lib/ruby/2.5.0/uri.rb:99: warning: previous definition of VERSION_CODE was here
/Users/yudai/.rbenv/versions/2.5.0/lib/ruby/2.5.0/uri.rb:100: warning: already initialized constant URI::VERSION
/Users/yudai/.rbenv/versions/2.5.0/lib/ruby/2.5.0/uri.rb:100: warning: previous definition of VERSION was here
rails aborted!
NameError: uninitialized class variable @@schemes in URI
/Users/yudai/Desktop/sample_app/config/application.rb:3:in `<top (required)>'
/Users/yudai/Desktop/sample_app/Rakefile:4:in `<top (required)>'
/Users/yudai/Desktop/sample_app/bin/rails:9:in `<top (required)>'
/Users/yudai/Desktop/sample_app/bin/spring:15:in `<top (required)>'
bin/rails:3:in `load'
bin/rails:3:in `<main>'
(See full trace by running task with --trace)

Comments

[mariguranule]

bundle installは成功していますか？
作り直してみても同じエラーがでますか？

Answer 1

私も同様のエラーが発生しています。

その後エラーは解決しましたでしょうか？
解決した様でしたら、解決方法を覚えていたら記載願えませんか？

Comments

[yudai109]

以前試行錯誤して解決したのですが、何がメインの問題だったのか覚えていません、。。。すみません。。

確か、

export Path="$HOME/ .rbenv/bin:&PATH"

という文言をbash_profileに書き込まないといけなかったのですが、僕の場合書き込んでいるファイルが違うbash_profile(別の開発をしていたディレクトリのbash_profile）に書き込んでいたような気がします。。

Answer 2

私も同じエラーで先に進めず苦戦しております。
ヒントいただきありがとうございます。
試験しております。