CocoaPods 更新安裝權限問題

今天學習持續集成安裝fastlane的時候遇到了雞兒權限的問題
和這篇文章的權限差很少CocoaPods安裝出現SSL verification error
安裝這篇文章修改了下，嗯？pod命令很差使了，而後我按照這篇文章從新安裝了cocoapods，CocoaPods安裝方法-2018.03.27
2017最新CocoaPods安裝
遇到下面問題：

Kikyo-2:~ kikyo$ sudo gem install -n /usr/local/bin cocoapods
GemWrappers: Can not wrap missing file: pod
GemWrappers: Can not wrap missing file: sandbox-pod
Successfully installed cocoapods-1.5.2
Parsing documentation for cocoapods-1.5.2
Done installing documentation for cocoapods after 2 seconds
1 gem installed
Kikyo-2:~ kikyo$ pod setup
-bash: pod: command not found

sudo gem install -n /usr/local/bin cocoapods 報錯
GemWrappers: Can not wrap missing file: pod
GemWrappers: Can not wrap missing file: sandbox-pod
而後pod命令沒法識別

找了好多方法，gem卸載cocoapods+重裝+下降Ruby版本都試了不行， 
而後看底下評論和我一個問題  
使用sudo gem install -n /usr/local/bin cocoapods 更新cocoapods 報錯，用sudo gem install cocoapods 這個更新就行了，真奇怪！
複製代碼