原文链接：https://blog.csdn.net/cc_ll/article/details/105855331
安装cocoapods遇到的bug问题，已解决。
小程序开发定制前面的配置完成后，不管输入sudo gem install pods还是输入sudo gem install -n /usr/local/bin cocoa pods都报错信息
ERROR: Error installing cocoapods:
ERROR: Failed to build gem extension.
/System/Library/Frameworks/.framework/Versions/2.6/usr/bin/ruby -I /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0 -r ./siteconf20200430-75028-3e0jka.rb extconf.rb
mkmf.rb can’t find header files for ruby at /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/include/ruby.h
You might have to install separate package for the ruby development
environment, ruby-dev or ruby-devel for example.
extconf failed, exit code 1
Gem files will remain installed in /Library/Ruby/Gems/2.6.0/gems/ffi-1.12.2 for inspection.
Results logged to /Library/Ruby/Gems/2.6.0/extensions/universal-darwin-19/2.6.0/ffi-1.12.2/gem_make.out
解决办法 终端： 输入：xcode-select --install 安装软件完成
pod setup
再输入sudo gem install -n /usr/local/bin cocoapods 就好了