Question

开始学习rails但在Mac上安装Rails时遇到问题。我的版本目前是OS X 10.8.3，问题如下：

/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rubygems.rb:230:in `activate': can't activate rack (~> 1.4.5, runtime) for ["actionpack-3.2.13", "railties-3.2.13"], already activated rack-1.5.2 for ["rack-ssl-1.3.3", "railties-3.2.13"] (Gem::LoadError)
    from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rubygems.rb:246:in `activate'
    from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rubygems.rb:245:in `each'
    from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rubygems.rb:245:in `activate'
    from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rubygems.rb:246:in `activate'
    from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rubygems.rb:245:in `each'
    from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rubygems.rb:245:in `activate'
    from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rubygems.rb:1056:in `gem'
    from /usr/bin/rails:18

如何解决此问题并正确运行rails？

Answer 1

您将安装Rails 3.2.13，它不支持Ruby 1.8。

“Rails 3.2是最后一个支持Ruby 1.8的版本。不支持Ruby 1.8.6及更早版本，版本1.9.1也不支持。” - http://rubyonrails.org/download

我建议您花一点时间学习RVM，而不是直接解决这个问题。然后使用RVM安装适当版本的Ruby，然后使用Rails。

在Mac上安装rails时出现LoadError（OS X 10.8.3）

1 个答案: