$ pod install
Analyzing dependencies
[!] An error occurred while performing `git pull` on repo `master`.
[!] /usr/bin/git pull --ff-only
fatal: Not possible to fast-forward, aborting.
我已经跑了
gem update --system
更新我的ruby安装
我的更多信息
cocoapod
安装
$ gem which cocoapods
/Users/antkong/.rvm/gems/ruby-2.1.2@global/gems/cocoapods-0.33.1/lib/cocoapods.rb