报错如下：
Errno::EACCES: Permission denied @ rb_sysopen - /Users/lvxingjie/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/fuzzy_match-2.0.4/.gitignore
An error occurred while installing fuzzy_match (2.0.4), and Bundler cannot continue.
Make sure that `gem install fuzzy_match -v ‘2.0.4‘ --source ‘https://gems.ruby-china.com/‘` succeeds before bundling.
解决办法：
sudo gem install cocoapods-core
原文：https://www.cnblogs.com/lv-books/p/14034934.html