ruby-on-rails - Ruby on Rails - Lynda - 生成 Controller 和 View ， 'Rails Generate' 命令出错

Question

我是 Ruby on Rails 的新手，正在观看 Lynda 的 Ruby on Rails 基本培训指南视频。

在入门视频集中，我们展示了“rails generator”命令的工作原理。我已按照所有步骤操作，但每次输入“$ rails generate”时都会出现以下错误:

Warning: You're using Rubygems 2.0.14 with Spring. Upgrade to at least Rubygems 2.1.0 and run `gem pristine --all` for better startup performance.
/Users/waleedrahamtullah/.rbenv/versions/2.1.2/lib/ruby/site_ruby/2.1.0/rubygems/core_ext/kernel_require.rb:55:in `require': cannot load such file -- bundler/setup (LoadError)
    from /Users/waleedrahamtullah/.rbenv/versions/2.1.2/lib/ruby/site_ruby/2.1.0/rubygems/core_ext/kernel_require.rb:55:in `require'
    from /Library/Ruby/Gems/2.0.0/gems/spring-1.1.3/lib/spring/commands.rb:33:in `<module:Spring>'
    from /Library/Ruby/Gems/2.0.0/gems/spring-1.1.3/lib/spring/commands.rb:4:in `<top (required)>'
    from /Users/waleedrahamtullah/.rbenv/versions/2.1.2/lib/ruby/site_ruby/2.1.0/rubygems/core_ext/kernel_require.rb:55:in `require'
    from /Users/waleedrahamtullah/.rbenv/versions/2.1.2/lib/ruby/site_ruby/2.1.0/rubygems/core_ext/kernel_require.rb:55:in `require'
    from /Library/Ruby/Gems/2.0.0/gems/spring-1.1.3/lib/spring/application.rb:77:in `preload'
    from /Library/Ruby/Gems/2.0.0/gems/spring-1.1.3/lib/spring/application.rb:140:in `serve'
    from /Library/Ruby/Gems/2.0.0/gems/spring-1.1.3/lib/spring/application.rb:128:in `block in run'
    from /Library/Ruby/Gems/2.0.0/gems/spring-1.1.3/lib/spring/application.rb:122:in `loop'
    from /Library/Ruby/Gems/2.0.0/gems/spring-1.1.3/lib/spring/application.rb:122:in `run'
    from /Library/Ruby/Gems/2.0.0/gems/spring-1.1.3/lib/spring/application/boot.rb:18:in `<top (required)>'
    from /Users/waleedrahamtullah/.rbenv/versions/2.1.2/lib/ruby/site_ruby/2.1.0/rubygems/core_ext/kernel_require.rb:55:in `require'
    from /Users/waleedrahamtullah/.rbenv/versions/2.1.2/lib/ruby/site_ruby/2.1.0/rubygems/core_ext/kernel_require.rb:55:in `require'
    from -e:1:in `<main>'

你认为我该如何解决这个问题？

Answer 1

答案在错误中:

You're using Rubygems 2.0.14 with Spring. Upgrade to at least Rubygems 2.1.0 and run `gem pristine --all`

用这个更新:

gem install rubygems-update

然后运行:

gem pristine --all

一切都会好起来的。