cocoapods安装中一种错误的解决方案

执行

sudo gem install cocoapods

安装cocoapods 成功了，

执行pod setup

pod setup

时出错了。

$ pod setup

/Library/Ruby/Gems/2.0.0/gems/cocoapods-0.30.0/lib/cocoapods.rb:12:in `<top (required)>': undefined method `enforce_available_locales=' for I18n:Module (NoMethodError)

    from /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:45:in `require'

    from /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:45:in `require'

    from /Library/Ruby/Gems/2.0.0/gems/cocoapods-0.30.0/bin/pod:32:in `<top (required)>'

    from /usr/bin/pod:23:in `load'

    from /usr/bin/pod:23:in `<main>'

google 了很久，也没有找到合适的答案，最后怀疑是不是这个i18n的东东，有问题，执行下面的语句

$ sudo gem install i18n

貌似解决了。