新しいRailsアプリケーション

Question

を作成するときに、私は次のRailsのバージョンがインストールされているレールのバージョンを指定します。私はレールのバージョン4.2.7.1でアプリケーションを作成したい

➜ gem list --local 
[...] 
rails (5.0.1, 4.2.7.1, 3.2.22.5) 
[...] 

と、このトピックが見つかりました：Specifying rails version to use when creating a new application、解決策がにあります

：残念ながら、これは私のために働いていない、このコマンドによって生成されたGemfileはまだ gem 'rails', '~> 5.0.1'を述べ

rails _4.2.7.1_ new MYAPP 

を実行します多分問題がある、

➜ rbenv -v 
rbenv 1.1.0 
➜ ruby -v 
ruby 2.3.3p222 (2016-11-21 revision 56859) [x86_64-darwin16] 

がrails -v戻りRails 5.0.1の実行：

➜ rails _4.2.7.1_ new MYAPP --skip-bundle 
     create 
     create README.md 
     create Rakefile 
     create config.ru 
     create .gitignore 
     create Gemfile 
     create app 
     create app/assets/config/manifest.js 
     create app/assets/javascripts/application.js 
     create app/assets/javascripts/cable.js 
     create app/assets/stylesheets/application.css 
     create app/channels/application_cable/channel.rb 
     create app/channels/application_cable/connection.rb 
     create app/controllers/application_controller.rb 
     create app/helpers/application_helper.rb 
     create app/jobs/application_job.rb 
     create app/mailers/application_mailer.rb 
     create app/models/application_record.rb 
     create app/views/layouts/application.html.erb 
     create app/views/layouts/mailer.html.erb 
     create app/views/layouts/mailer.text.erb 
     create app/assets/images/.keep 
     create app/assets/javascripts/channels 
     create app/assets/javascripts/channels/.keep 
     create app/controllers/concerns/.keep 
     create app/models/concerns/.keep 
     create bin 
     create bin/bundle 
     create bin/rails 
     create bin/rake 
     create bin/setup 
     create bin/update 
     create config 
     create config/routes.rb 
     create config/application.rb 
     create config/environment.rb 
     create config/secrets.yml 
     create config/cable.yml 
     create config/puma.rb 
     create config/spring.rb 
     create config/environments 
     create config/environments/development.rb 
     create config/environments/production.rb 
     create config/environments/test.rb 
     create config/initializers 
     create config/initializers/application_controller_renderer.rb 
     create config/initializers/assets.rb 
     create config/initializers/backtrace_silencers.rb 
     create config/initializers/cookies_serializer.rb 
     create config/initializers/cors.rb 
     create config/initializers/filter_parameter_logging.rb 
     create config/initializers/inflections.rb 
     create config/initializers/mime_types.rb 
     create config/initializers/new_framework_defaults.rb 
     create config/initializers/session_store.rb 
     create config/initializers/wrap_parameters.rb 
     create config/locales 
     create config/locales/en.yml 
     create config/boot.rb 
     create config/database.yml 
     create db 
     create db/seeds.rb 
     create lib 
     create lib/tasks 
     create lib/tasks/.keep 
     create lib/assets 
     create lib/assets/.keep 
     create log 
     create log/.keep 
     create public 
     create public/404.html 
     create public/422.html 
     create public/500.html 
     create public/apple-touch-icon-precomposed.png 
     create public/apple-touch-icon.png 
     create public/favicon.ico 
     create public/robots.txt 
     create test/fixtures 
     create test/fixtures/.keep 
     create test/fixtures/files 
     create test/fixtures/files/.keep 
     create test/controllers 
     create test/controllers/.keep 
     create test/mailers 
     create test/mailers/.keep 
     create test/models 
     create test/models/.keep 
     create test/helpers 
     create test/helpers/.keep 
     create test/integration 
     create test/integration/.keep 
     create test/test_helper.rb 
     create tmp 
     create tmp/.keep 
     create tmp/cache 
     create tmp/cache/assets 
     create vendor/assets/javascripts 
     create vendor/assets/javascripts/.keep 
     create vendor/assets/stylesheets 
     create vendor/assets/stylesheets/.keep 
     remove config/initializers/cors.rb 
➜ cd MYAPP 
➜ cat Gemfile 
source 'https://rubygems.org' 

git_source(:github) do |repo_name| 
    repo_name = "#{repo_name}/#{repo_name}" unless repo_name.include?("/") 
    "https://github.com/#{repo_name}.git" 
end 


# Bundle edge Rails instead: gem 'rails', github: 'rails/rails' 
gem 'rails', '~> 5.0.1' 
# Use sqlite3 as the database for Active Record 
gem 'sqlite3' 
# Use Puma as the app server 
gem 'puma', '~> 3.0' 
# Use SCSS for stylesheets 
gem 'sass-rails', '~> 5.0' 
# Use Uglifier as compressor for JavaScript assets 
gem 'uglifier', '>= 1.3.0' 
# Use CoffeeScript for .coffee assets and views 
gem 'coffee-rails', '~> 4.2' 
# See https://github.com/rails/execjs#readme for more supported runtimes 
# gem 'therubyracer', platforms: :ruby 

# Use jquery as the JavaScript library 
gem 'jquery-rails' 
# Turbolinks makes navigating your web application faster. Read more: https://github.com/turbolinks/turbolinks 
gem 'turbolinks', '~> 5' 
# Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder 
gem 'jbuilder', '~> 2.5' 
# Use Redis adapter to run Action Cable in production 
# gem 'redis', '~> 3.0' 
# Use ActiveModel has_secure_password 
# gem 'bcrypt', '~> 3.1.7' 

# Use Capistrano for deployment 
# gem 'capistrano-rails', group: :development 

group :development, :test do 
    # Call 'byebug' anywhere in the code to stop execution and get a debugger console 
    gem 'byebug', platform: :mri 
end 

group :development do 
    # Access an IRB console on exception pages or by using <%= console %> anywhere in the code. 
    gem 'web-console', '>= 3.3.0' 
    gem 'listen', '~> 3.0.5' 
    # Spring speeds up development by keeping your application running in the background. Read more: https://github.com/rails/spring 
    gem 'spring' 
    gem 'spring-watcher-listen', '~> 2.0.0' 
end 

# Windows does not include zoneinfo files, so bundle the tzinfo-data gem 
gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw, :jruby] 

私はrbenvとルビーのこれらのバージョンを使用できますか？ 私を助けてもらえますか？

Answer 1

は、必ず実行しgemfile

gem 'rails', '~> 4.2.7.1' 

でそれを変更することができます。

cd MYAPP 
bundle install 

あなたはthisのようなバンドルでそれを行うにもすることができます。あなたが詳細を知りたい場合はtutorialに従ってください