@Rei @xiaoronglv

已经确定的

• ruby 的版本是 2.3.1
• gem 的版本是 2.6.6
• rails 的版本是 5.0.0.1
• RubyGems 下面的镜像只有 gems.ruby-china.org

已经做的

• 创建了 rails 目录名字叫 projectrails
• 移动到该目录下
• 新创建 rails 项目

yydeMacBook-Air% mkdir projectsrails*
yydeMacBook-Air% cd projectsrails*
yydeMacBook-Air% rails new demo --skip-test-unit*

问题

• 当出现 run bundle install 的并运行到 Using bundler 1.12.5 的时候问题出现了

Your user account isn't allowed to install to the system Rubygems. You can cancel this installation and run:

bundle install --path vendor/bundle

to install the gems into ./vendor/bundle/, or you can enter your password and install the bundled gems to Rubygems using sudo.

Password:

• 当我按第一种要求按退出执行 bundle install --path vendor/bundle,报错说Could not locate Gemfile
• 当我按第二种要求输入密码，又出现报错

Using mime-types 3.1 An error occurred while installing byebug (9.0.6), and Bundler cannot continue. Make sure that gem install byebug -v '9.0.6' succeeds before bundling. run bundle exec spring binstub --all bundler: command not found: spring Install missing gem executables with bundle install

总结

因为之前对后端程序不是很了解，所以到现在我不敢轻举妄动，因为盲点比较多，怕越弄越糊涂。希望高人指点。