cocoapods流程记录

1.移除现有Ruby默认源
gem sources --remove https://rubygems.org/

2.使用新的源
gem sources -a https://gems.ruby-china.org/

3.验证新源是否替换成功
gem sources -l

*** CURRENT SOURCES ***

https://gems.ruby-china.org/

4.安装 cocoapods
sudo gem install cocoapods
出现错误：
Unable to resolve dependencies: cocoapods requires cocoapods-core (= 1.2.1), cocoapods-downloader (< 2.0, >= 1.1.3), cocoapods-trunk (< 2.0, >= 1.2.0), molinillo (~> 0.5.7), xcodeproj (< 2.0, >= 1.4.4), colored2 (~> 3.1), escape (~> 0.0.4), fourflusher (~> 2.0.1), gh_inspector (~> 1.0), nap (~> 1.0), ruby-macho (~> 1.1); activesupport requires i18n (~> 0.7), tzinfo (~> 1.1), minitest (~> 5.1), thread_safe (>= 0.3.4, ~> 0.3); cocoapods-plugins requires nap (>= 0)

5命令：sudo gem update --system

6 再次安装cocoapods
命令：sudo gem install cocoapods

错误
ERROR: While executing gem ... (Errno::EPERM)
Operation not permitted - /usr/bin/xcodeproj
解决：
7
使用命令 sudo gem install -n /usr/local/bin cocoapods