rails s 効かない (環境構築)

前提・実現したいこと

https://github.com/helpyio/helpy
上記のアプリをローカル環境(MacBookPro(13-inch, Mid 2012), Ruby2.5.0)で開発できる状態にしたいです。

また、同様の質問に対する回答でMacが古いからという理由もありそうでしたが、すぐに買い換えれる状況にないので、PC買い換えなしでエラーを解決したいです。

発生している問題・エラーメッセージ

Traceback (most recent call last):
        23: from bin/rails:4:in `<main>'
        22: from bin/rails:4:in `require'
        21: from /Users/user/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/railties-4.2.11.1/lib/rails/commands.rb:17:in `<top (required)>'
        20: from /Users/user/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/railties-4.2.11.1/lib/rails/commands/commands_tasks.rb:39:in `run_command!'
        19: from /Users/user/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/railties-4.2.11.1/lib/rails/commands/commands_tasks.rb:73:in `server'
        18: from /Users/user/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/railties-4.2.11.1/lib/rails/commands/commands_tasks.rb:123:in `require_command!'
        17: from /Users/user/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/railties-4.2.11.1/lib/rails/commands/commands_tasks.rb:123:in `require'
        16: from /Users/user/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/railties-4.2.11.1/lib/rails/commands/server.rb:3:in `<top (required)>'
        15: from /Users/user/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/railties-4.2.11.1/lib/rails/commands/server.rb:3:in `require'
        14: from /Users/user/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/actionpack-4.2.11.1/lib/action_dispatch.rb:29:in `<top (required)>'
        13: from /Users/user/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/actionpack-4.2.11.1/lib/action_dispatch.rb:29:in `require'
        12: from /Users/user/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/rack-1.6.13/lib/rack.rb:12:in `<top (required)>'
        11: from /Users/user/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/rack-1.6.13/lib/rack.rb:95:in `<module:Rack>'
        10: from /Users/user/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/rack-1.6.13/lib/rack.rb:95:in `require'
         9: from /Users/user/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/rack-1.6.13/lib/rack/utils.rb:17:in `<top (required)>'
         8: from /Users/user/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/rack-1.6.13/lib/rack/utils.rb:17:in `require'
         7: from /Users/user/.rbenv/versions/2.5.0/lib/ruby/2.5.0/uri/common.rb:13:in `<top (required)>'
         6: from /Users/user/.rbenv/versions/2.5.0/lib/ruby/2.5.0/uri/common.rb:13:in `require'
         5: from /Users/user/.rbenv/versions/2.5.0/lib/ruby/2.5.0/uri/rfc2396_parser.rb:13:in `<top (required)>'
         4: from /Users/user/.rbenv/versions/2.5.0/lib/ruby/2.5.0/uri/rfc2396_parser.rb:13:in `require'
         3: from /Users/user/.rbenv/versions/2.5.0/lib/ruby/2.5.0/uri.rb:107:in `<top (required)>'
         2: from /Users/user/.rbenv/versions/2.5.0/lib/ruby/2.5.0/uri.rb:107:in `require'
         1: from /Users/user/.rbenv/versions/2.5.0/lib/ruby/2.5.0/uri/ftp.rb:13:in `<top (required)>'
/Users/user/.rbenv/versions/2.5.0/lib/ruby/2.5.0/uri/ftp.rb:266:in `<module:URI>': uninitialized class variable @@schemes in URI (NameError)
rrcs-172-254-99-43:helpy user$ rails s
Traceback (most recent call last):
        23: from bin/rails:4:in `<main>'
        22: from bin/rails:4:in `require'
        21: from /Users/user/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/railties-4.2.11.1/lib/rails/commands.rb:17:in `<top (required)>'
        20: from /Users/user/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/railties-4.2.11.1/lib/rails/commands/commands_tasks.rb:39:in `run_command!'
        19: from /Users/user/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/railties-4.2.11.1/lib/rails/commands/commands_tasks.rb:73:in `server'
        18: from /Users/user/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/railties-4.2.11.1/lib/rails/commands/commands_tasks.rb:123:in `require_command!'
        17: from /Users/user/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/railties-4.2.11.1/lib/rails/commands/commands_tasks.rb:123:in `require'
        16: from /Users/user/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/railties-4.2.11.1/lib/rails/commands/server.rb:3:in `<top (required)>'
        15: from /Users/user/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/railties-4.2.11.1/lib/rails/commands/server.rb:3:in `require'
        14: from /Users/user/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/actionpack-4.2.11.1/lib/action_dispatch.rb:29:in `<top (required)>'
        13: from /Users/user/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/actionpack-4.2.11.1/lib/action_dispatch.rb:29:in `require'
        12: from /Users/user/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/rack-1.6.13/lib/rack.rb:12:in `<top (required)>'
        11: from /Users/user/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/rack-1.6.13/lib/rack.rb:95:in `<module:Rack>'
        10: from /Users/user/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/rack-1.6.13/lib/rack.rb:95:in `require'
         9: from /Users/user/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/rack-1.6.13/lib/rack/utils.rb:17:in `<top (required)>'
         8: from /Users/user/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/rack-1.6.13/lib/rack/utils.rb:17:in `require'
         7: from /Users/user/.rbenv/versions/2.5.0/lib/ruby/2.5.0/uri/common.rb:13:in `<top (required)>'
         6: from /Users/user/.rbenv/versions/2.5.0/lib/ruby/2.5.0/uri/common.rb:13:in `require'
         5: from /Users/user/.rbenv/versions/2.5.0/lib/ruby/2.5.0/uri/rfc2396_parser.rb:13:in `<top (required)>'
         4: from /Users/user/.rbenv/versions/2.5.0/lib/ruby/2.5.0/uri/rfc2396_parser.rb:13:in `require'
         3: from /Users/user/.rbenv/versions/2.5.0/lib/ruby/2.5.0/uri.rb:107:in `<top (required)>'
         2: from /Users/user/.rbenv/versions/2.5.0/lib/ruby/2.5.0/uri.rb:107:in `require'
         1: from /Users/user/.rbenv/versions/2.5.0/lib/ruby/2.5.0/uri/ftp.rb:13:in `<top (required)>'
/Users/user/.rbenv/versions/2.5.0/lib/ruby/2.5.0/uri/ftp.rb:266:in `<module:URI>': uninitialized class variable @@schemes in URI (NameError)

該当のソースコード

ruby
1require 'uri/generic'
2require 'active_support/core_ext/module/aliasing'
3require 'active_support/core_ext/object/blank'
4require 'active_support/core_ext/hash/indifferent_access'
5
6module URI
7  class GID < Generic
8    # URI::GID encodes an app unique reference to a specific model as an URI.
9    # It has the components: app name, model class name, model id and params.
10    # All components except params are required.
11    #
12    # The URI format looks like "gid://app/model_name/model_id".
13    #
14    # Simple metadata can be stored in params. Useful if your app has multiple databases,
15    # for instance, and you need to find out which one to look up the model in.
16    #
17    # Params will be encoded as query parameters like so
18    # "gid://app/model_name/model_id?key=value&another_key=another_value".
19    #
20    # Params won't be typecast, they're always strings.
21    # For convenience params can be accessed using both strings and symbol keys.
22    #
23    # Multi value params aren't supported. Any params encoding multiple values under
24    # the same key will return only the last value. For example, when decoding
25    # params like "key=first_value&key=last_value" key will only be last_value.
26    #
27    # Read the documentation for +parse+, +create+ and +build+ for more.
28    alias :app :host
29    attr_reader :model_name, :model_id, :params
30
31    # Raised when creating a Global ID for a model without an id
32    class MissingModelIdError < URI::InvalidComponentError; end
33
34    class << self
35      # Validates +app+'s as URI hostnames containing only alphanumeric characters
36      # and hyphens. An ArgumentError is raised if +app+ is invalid.
37      #
38      #   URI::GID.validate_app('bcx')     # => 'bcx'
39      #   URI::GID.validate_app('foo-bar') # => 'foo-bar'
40      #
41      #   URI::GID.validate_app(nil)       # => ArgumentError
42      #   URI::GID.validate_app('foo/bar') # => ArgumentError
43      def validate_app(app)
44        parse("gid://#{app}/Model/1").app
45      rescue URI::Error
46        raise ArgumentError, 'Invalid app name. ' \
47          'App names must be valid URI hostnames: alphanumeric and hyphen characters only.'
48      end
49
50      # Create a new URI::GID by parsing a gid string with argument check.
51      #
52      #   URI::GID.parse 'gid://bcx/Person/1?key=value'
53      #
54      # This differs from URI() and URI.parse which do not check arguments.
55      #
56      #   URI('gid://bcx')             # => URI::GID instance
57      #   URI.parse('gid://bcx')       # => URI::GID instance
58      #   URI::GID.parse('gid://bcx/') # => raises URI::InvalidComponentError
59      def parse(uri)
60        generic_components = URI.split(uri) << nil << true # nil parser, true arg_check
61        new(*generic_components)
62      end
63
64      # Shorthand to build a URI::GID from an app, a model and optional params.
65      #
66      #   URI::GID.create('bcx', Person.find(5), database: 'superhumans')
67      def create(app, model, params = nil)
68        build app: app, model_name: model.class.name, model_id: model.id, params: params
69      end
70
71＊一部省略
72      def validate_model_id(model_id, model_name)
73        return model_id unless model_id.blank?
74
75        raise MissingModelIdError, "Unable to create a Global ID for " \
76          "#{model_name} without a model id."
77      end
78
79      def parse_query_params(query)
80        Hash[URI.decode_www_form(query)].with_indifferent_access if query
81      end
82  end
83  @@schemes['GID'] = GID
84end
85

試したこと

https://teratail.com/questions/233687
同様の質問があったので解決策全て試しましたが、エラー内容変わらずでした。

また、クラス変数@@schemesが初期化されていないというエラーなので、module URI内に
@@schemes = String.newや@@schemes =""
など初期化する記述を加えてみましたが、エラー内容変わらずでした。

よろしくお願いいたします。

行動規範の内容に同意します

回答1件

ベストアンサー

もう少し情報が欲しいところです。
これまでにどんなコマンドをどのディレクトリで実行したかなどを、教えてもらえますか？

投稿2020/04/29 10:29

motoaki

総合スコア106

tatti

2020/04/29 10:59 編集

早速のご質問ありがとうございます。以下、ご質問に対する回答です。 ①デスクトップ⇨mkdir myapp ②cd myapp ⇨　rails new etc... ＊myappでhttp://localhost:3000/にアクセスし「Yay! You’re on Rails!」が表示される状態にはできました。 ③(myappディレクトリにて)git clone https://github.com/helpyio/helpy.git　（ここで「helpy」というディレクトリができた）⇨　cd helpy ④bundle install(エラーなし)⇨　「rails s」　←←←ここで詰まってます。

motoaki

2020/04/29 11:25

ありがとうございます。 ②のrails newはたぶん必要ないですが、特に問題はなさそうかなと思います。コマンドをbundle exec rails sにしたら、できたりしませんか？あと、もしかしたら、rubyのバージョンが原因なのも考えられるかなあと思いました。

tatti

2020/04/29 12:56

ありがとうございます。 bundle exec rails sでも結果変わらずでした。また、一度アプリをまるっと削除してからもう一度同じ手順を踏んでみると以下のエラーに変わりました。 in `<top (required)>': uninitialized constant ActionView::Template::Handlers::ERB::Erubi (NameError) rubyのバージョン変えて試してみます。

tatti

2020/04/29 13:47

clone元のgithubドキュメントを見直してみると、ruby2.4系と表記されていましたが、ローカルにはruby2.5系をインストールしてしまっていました。引き続きエラーは出てますが、ひとまずサーバーは立ちましたので解決です。ありがとうございました。

行動規範の内容に同意します