LoginSignup
@yuchan0001

Are you sure you want to delete the question?

If your question is resolved, you may close it.

Leaving a resolved question undeleted may help others!

We hope you find it useful!

Railsのスタートに関する質問

Q&A

RubyRails

Railsについての質問です

スペックは
mac Catalina 10.15.6
Rails 5.2.4.4
です

https://prog-8.com/docs/rails-env
にある様にsample_appというフォルダを作り

cd sample_app
と入れた時に

sample_app git:(master) ✗
というものが出てきて

railsを起動しようとしても
Traceback (most recent call last):
以下省略

というものが出てきてしまうのですがどうしたらいいのでしょうか。

よろしくお願いします。

0 likes

1Answer

uasi
@uasi

「以下省略」の部分が重要なので出てきた内容を書いてもらえますか？

2Like

Comments

  1. @yuchan0001

    Questioner

    長くなってしまいますが、この様な感じです
    よろしくお願い致します。

    cd sample_app
    sample_app git:(master) ✗ rails s
    Traceback (most recent call last):
    61: from bin/rails:3:in `<main>'
    60: from bin/rails:3:in `load'
    59: from /Users/kawa/sample_app/bin/spring:15:in `<top (required)>'
    58: from /Users/kaw/.rbenv/versions/2.7.1/lib/ruby/2.7.0/rubygems/core_ext/kernel_require.rb:72:in `require'
    57: from /Users/kawa/.rbenv/versions/2.7.1/lib/ruby/2.7.0/rubygems/core_ext/kernel_require.rb:72:in `require'
    56: from /Users/kawasumiyuuya/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/spring-2.1.1/lib/spring/binstub.rb:11:in `<top (required)>'
    55: from /Users/kawa/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/spring-2.1.1/lib/spring/binstub.rb:11:in `load'
    54: from /Users/kawa/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/spring-2.1.1/bin/spring:49:in `<top (required)>'
    53: from /Users/kawa/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/spring-2.1.1/lib/spring/client.rb:30:in `run'
    52: from /Users/kawa/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/spring-2.1.1/lib/spring/client/command.rb:7:in `call'
    51: from /Users/kawa/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/spring-2.1.1/lib/spring/client/rails.rb:28:in `call'
    50: from /Users/kawa/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/spring-2.1.1/lib/spring/client/rails.rb:28:in `load'
    49: from /Users/kawa/sample_app/bin/rails:9:in `<top (required)>'
    48: from /Users/kawa/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/activesupport-5.2.4.4/lib/active_support/dependencies.rb:291:in `require'
    47: from /Users/kawa/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/activesupport-5.2.4.4/lib/active_support/dependencies.rb:257:in `load_dependency'
    46: from /Users/kawasumiyuuya/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/activesupport-5.2.4.4/lib/active_support/dependencies.rb:291:in `block in require'
    45: from /Users/kawasumiyuuya/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/bootsnap-1.4.8/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:31:in `require'
    44: from /Users/kawasumiyuuya/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/bootsnap-1.4.8/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `require_with_bootsnap_lfi'
    43: from /Users/kawasumiyuuya/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/bootsnap-1.4.8/lib/bootsnap/load_path_cache/loaded_features_index.rb:92:in `register'
    42: from /Users/kawasumiyuuya/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/bootsnap-1.4.8/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:23:in `block in require_with_bootsnap_lfi'
    41: from /Users/kawa/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/bootsnap-1.4.8/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:23:in `require'
    40: from /Users/kawa/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/railties-5.2.4.4/lib/rails/commands.rb:18:in `<main>'
    39: from /Users/kawa/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/railties-5.2.4.4/lib/rails/command.rb:46:in `invoke'
    38: from /Users/kawa/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/railties-5.2.4.4/lib/rails/command/base.rb:69:in `perform'
    37: from /Users/kawa/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/thor-1.0.1/lib/thor.rb:392:in `dispatch'
    36: from /Users/kawa/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/thor-1.0.1/lib/thor/invocation.rb:127:in `invoke_command'
    35: from /Users/kawa/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/thor-1.0.1/lib/thor/command.rb:27:in `run'
    34: from /Users/kawa/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/railties-5.2.4.4/lib/rails/commands/server/server_command.rb:142:in `perform'
    33: from /Users/kawa/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/railties-5.2.4.4/lib/rails/commands/server/server_command.rb:142:in `tap'
    32: from /Users/kawa/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/railties-5.2.4.4/lib/rails/commands/server/server_command.rb:145:in `block in perform'
    31: from /Users/kawa/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/activesupport-5.2.4.4/lib/active_support/dependencies.rb:291:in `require'
    30: from /Users/kawa/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/activesupport-5.2.4.4/lib/active_support/dependencies.rb:257:in `load_dependency'
    29: from /Users/kawa/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/activesupport-5.2.4.4/lib/active_support/dependencies.rb:291:in `block in require'
    28: from /Users/kawa/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/bootsnap-1.4.8/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:31:in `require'
    27: from /Users/kawa/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/bootsnap-1.4.8/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `require_with_bootsnap_lfi'
    26: from /Users/kawa/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/bootsnap-1.4.8/lib/bootsnap/load_path_cache/loaded_features_index.rb:92:in `register'
    25: from /Users/kawa/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/bootsnap-1.4.8/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:23:in `block in require_with_bootsnap_lfi'
    24: from /Users/kawa/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/bootsnap-1.4.8/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:23:in `require'
    23: from /Users/kawa/sample_app/config/application.rb:7:in `<main>'
    22: from /Users/kawa/.rbenv/versions/2.7.1/lib/ruby/2.7.0/bundler.rb:174:in `require'
    21: from /Users/kawa/.rbenv/versions/2.7.1/lib/ruby/2.7.0/bundler/runtime.rb:58:in `require'
    20: from /Users/kawa/.rbenv/versions/2.7.1/lib/ruby/2.7.0/bundler/runtime.rb:58:in `each'
    19: from /Users/kawa/.rbenv/versions/2.7.1/lib/ruby/2.7.0/bundler/runtime.rb:69:in `block in require'
    18: from /Users/kawa/.rbenv/versions/2.7.1/lib/ruby/2.7.0/bundler/runtime.rb:69:in `each'
    17: from /Users/kawa/.rbenv/versions/2.7.1/lib/ruby/2.7.0/bundler/runtime.rb:74:in `block (2 levels) in require'
    16: from /Users/kawa/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/bootsnap-1.4.8/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:31:in `require'
    15: from /Users/kawa/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/bootsnap-1.4.8/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `require_with_bootsnap_lfi'
    14: from /Users/kawa/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/bootsnap-1.4.8/lib/bootsnap/load_path_cache/loaded_features_index.rb:92:in `register'
    13: from /Users/kawa/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/bootsnap-1.4.8/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:23:in `block in require_with_bootsnap_lfi'
    12: from /Users/kawa/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/bootsnap-1.4.8/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:23:in `require'
    11: from /Users/kawa/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/uglifier-4.2.0/lib/uglifier.rb:5:in `<main>'
    10: from /Users/kawa/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/activesupport-5.2.4.4/lib/active_support/dependencies.rb:291:in `require'
    9: from /Users/kawa/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/activesupport-5.2.4.4/lib/active_support/dependencies.rb:257:in `load_dependency'
    8: from /Users/kawa/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/activesupport-5.2.4.4/lib/active_support/dependencies.rb:291:in `block in require'
    7: from /Users/kawa/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/bootsnap-1.4.8/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:31:in `require'
    6: from /Users/kawa/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/bootsnap-1.4.8/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `require_with_bootsnap_lfi'
    5: from /Users/kawa/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/bootsnap-1.4.8/lib/bootsnap/load_path_cache/loaded_features_index.rb:92:in `register'
    4: from /Users/kawa/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/bootsnap-1.4.8/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:23:in `block in require_with_bootsnap_lfi'
    3: from /Users/kawa/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/bootsnap-1.4.8/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:23:in `require'
    2: from /Users/kawa/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/execjs-2.7.0/lib/execjs.rb:4:in `<main>'
    1: from /Users/kawa/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/execjs-2.7.0/lib/execjs.rb:5:in `<module:ExecJS>'
    /Users/kawa/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/execjs-2.7.0/lib/execjs/runtimes.rb:58:in `autodetect': Could not find a JavaScript runtime. See https://github.com/rails/execjs for a list of available runtimes. (ExecJS::RuntimeUnavailable)
    ➜ sample_app git:(master) ✗

  2. @uasi

    最後の行の

    Could not find a JavaScript runtime. See https://github.com/rails/execjs for a list of available runtimes. (ExecJS::RuntimeUnavailable)

    が原因を表しています。 ExecJS が必要とする JavaScript ランタイムが入っていないためにエラーが出ています。ランタイムの選択肢はいくつかありますが、この場合 Node.js がベターでしょう。 Node.js をインストールすれば直ります。 https://nodejs.org/ja/

  3. @yuchan0001

    Questioner

    解決しました！
    とても助かりました、ありがとうございます!

Your answer might help someone💌

LoginSign Up