使用CocoaPods时遇到 Permission denied 问题
报错：
Setting up CocoaPods master repo [!] /usr/bin/git clone 'https://github.com/CocoaPods/Specs.git' master --depth=1 fatal: could not create work tree dir 'master'.: Permission denied /Library/Ruby/Gems/2.0.0/gems/claide-0.6.1/lib/claide/command.rb:304:in `handle_exception': undefined method `verbose?' for nil:NilClass (NoMethodError) from /Library/Ruby/Gems/2.0.0/gems/claide-0.6.1/lib/claide/command.rb:284:in `rescue in run' from /Library/Ruby/Gems/2.0.0/gems/claide-0.6.1/lib/claide/command.rb:274:in `run' from /Library/Ruby/Gems/2.0.0/gems/cocoapods-0.33.1/lib/cocoapods/command.rb:48:in `run' from /Library/Ruby/Gems/2.0.0/gems/cocoapods-0.33.1/bin/pod:33:in `<top (required)>' from /usr/bin/pod:23:in `load' from /usr/bin/pod:23:in `<main>'
解决网址：
