我尝试在 cocoapods 项目上报告此问题，但被指示在此处发布。我最近承担了一个工作项目，但我无法让以前的顾问设置在我的本地工作站上运行。然而，当我运行时，我能够成功安装 cocoapods gempod install它爆炸了......
specification.rb:1990:in `raise_if_conflicts': Unable to activate xcodeproj-0.14.1, because activesupport-4.0.0.rc1 conflicts with activesupport (~> 3.0) (Gem::LoadError)
from /Users/chrishough/.rbenv/versions/2.0.0-p0/lib/ruby/site_ruby/2.0.0/rubygems/specification.rb:1163:in `activate'
from /Users/chrishough/.rbenv/versions/2.0.0-p0/lib/ruby/site_ruby/2.0.0/rubygems/specification.rb:1199:in `block in activate_dependencies'
from /Users/chrishough/.rbenv/versions/2.0.0-p0/lib/ruby/site_ruby/2.0.0/rubygems/specification.rb:1185:in `each'
from /Users/chrishough/.rbenv/versions/2.0.0-p0/lib/ruby/site_ruby/2.0.0/rubygems/specification.rb:1185:in `activate_dependencies'
from /Users/chrishough/.rbenv/versions/2.0.0-p0/lib/ruby/site_ruby/2.0.0/rubygems/specification.rb:1167:in `activate'
from /Users/chrishough/.rbenv/versions/2.0.0-p0/lib/ruby/site_ruby/2.0.0/rubygems/core_ext/kernel_gem.rb:48:in `gem'
from /Users/chrishough/.rbenv/versions/2.0.0-p0/bin/pod:22:in `<main>'
我目前使用 rbenv 和 ruby 2.0.0 以及最新版本的 xcode、git 等。我所有的 ruby 和 Rails 项目都工作正常，但我对 ios 有点菜鸟。
想法？指针？
https://github.com/CocoaPods/CocoaPods/issues/1775 https://github.com/CocoaPods/CocoaPods/issues/1775
https://github.com/CocoaPods/CocoaPods/issues/1762 https://github.com/CocoaPods/CocoaPods/issues/1762
根据上面的 @jimjeffers 评论，我必须切换到安装的 Ruby 2.0 的不同版本，在本例中为“2.0.0-p195”并且run rbenv local 2.0.0-p195=> 按照以下步骤操作后http://cocoapods.org/ http://cocoapods.org/跑步：
gem install cocoapods
pod install
完成后我就可以启动 ios 项目了。
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