我安装了CocoaPods：
retine:MacOS jdmuys$ sudo gem install cocoapods
[...]
Successfully installed cocoapods-0.29.0
1 gem installed
Installing ri documentation for cocoapods-0.29.0...
Installing RDoc documentation for cocoapods-0.29.0...
然而，它似乎不起作用：
retine:MacOS jdmuys$ pod --version
/Users/jdmuys/.rvm/rubies/ruby-1.9.3-p327/lib/ruby/1.9.1/rubygems/dependency.rb:247:in `to_specs': Could not find cocoapods (>= 0) amongst [addressable-2.3.2, bundler-1.2.3, chunky_png-1.2.6, compass-0.11.7, cookiejar-0.3.0, daemons-1.1.9, em-http-request-1.0.3, em-socksify-0.2.1, erubis-2.7.0, eventmachine-1.0.0, extlib-0.9.15, fssm-0.2.9, haml-3.1.7, http_parser.rb-0.5.3, json_pure-1.4.6, rack-1.4.1, rake-10.0.3, rubygems-bundler-1.1.0, rvm-1.11.3.5, sass-3.1.21, sproutcore-1.9.1, thin-1.2.11, thor-0.14.6] (Gem::LoadError)
from /Users/jdmuys/.rvm/rubies/ruby-1.9.3-p327/lib/ruby/1.9.1/rubygems/dependency.rb:256:in `to_spec'
from /Users/jdmuys/.rvm/rubies/ruby-1.9.3-p327/lib/ruby/1.9.1/rubygems.rb:1231:in `gem'
from /Users/jdmuys/.rvm/rubies/ruby-1.9.3-p327/bin/pod:22:in `<main>'
FWIW：
retine:MacOS jdmuys$ xcode-select --print-path
/Applications/Xcode51-Beta4.app/Contents/Developer
（如果我切换到Xcode的非beta版本，则无效）
和
retine:MacOS jdmuys$ ruby --version
ruby 1.9.3p327 (2012-11-10) [x86_64-darwin12.2.0]
知道发生了什么以及我可以做些什么来修复它？
由于
答案 0 :(得分：0)
我遇到了类似的问题，没有sudo重新安装 - gem install cocoapods - 为我解决了这个问题。