升级系统后pod update报错bad interpreter

pod update --verbose --no-repo-update

-bash: /usr/local/bin/pod: /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/bin/ruby: bad interpreter: No such file or directory

解决

sudo gem update --system
sudo gem install cocoapods -n/usr/local/bin

参考资料：http://www.cocoachina.com/bbs/read.php?tid-1727144.html