有大神知道这是怎么回事吗？
npm ERR! code 128
npm ERR! An unknown git error occurred
npm ERR! command git --no-replace-objects ls-remote ssh:// git@github.com /nhn/raphael.git
npm ERR! git@github.com : Permission denied (publickey).
npm ERR! fatal: Could not read from remote repository.
npm ERR!
npm ERR! Please make sure you have the correct access rights
npm ERR! and the repository exists.

Originally posted by @Zejayyy in #24 (comment)

这个报错是因为GIT没有sshkey,具体解决办法参考这个网址 github