更新gem
$ sudo gem update -n /usr/local/bin --system
更新Ruby源
$ gem sources --add https://gems.ruby-china.com/ --remove https://rubygems.org/
檢查Ruby源
$ gem sources -l
https://gems.ruby-china.com
確保只有g(shù)ems.ruby-china.com
如果安裝了多個(gè)Xcode怠惶,用以下命令選擇
$ sudo xcode-select -switch /Applications/Xcode.app/Contents/Developer
安裝Cocoapods
$ sudo gem install -n /usr/local/bin cocoapods
安裝指定版本的Cocoapods
$ sudo gem install -n /usr/local/bin cocoapods -v 1.5.3