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Ruby on Rails 在 Windows 7 上失败，报告激活错误

tag-icon • tag-icon windows-7 ruby-on-rails
Ruby on Rails 在 Windows 7 上失败，报告激活错误

我使用安装套件http://www.railsinstaller.org/ 一切顺利。然后按照说明在 c:/sites 中设置一个项目，一切顺利。但现在每次我运行“rails s”然后关闭它时，rails 就会完全停止工作。

    Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation.  All rights reserved.

c:\Sites\project>rails s
C:/Program Files (x86)/ruby-1.9.3/lib/ruby/site_ruby/1.9.1/rubygems.rb:926:in `r
eport_activate_error': Could not find RubyGem railties (>= 0) (Gem::LoadError)
        from C:/Program Files (x86)/ruby-1.9.3/lib/ruby/site_ruby/1.9.1/rubygems
.rb:244:in `activate_dep'
        from C:/Program Files (x86)/ruby-1.9.3/lib/ruby/site_ruby/1.9.1/rubygems
.rb:236:in `activate'
        from C:/Program Files (x86)/ruby-1.9.3/lib/ruby/site_ruby/1.9.1/rubygems
.rb:1307:in `gem'
        from C:/RailsInstaller/Ruby1.9.3/bin/rails:18:in `<main>'

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