cocospods 创建私有库遇到的问题

https://www.jianshu.com/p/0a4fbb94ef9f?utm_campaign=hugo&utm_medium=reader_share&utm_content=note&utm_source=weixin-friends

ERROR | [iOS] unknown: Encountered an unknown error (/usr/bin/xcrun simctl list -j devices

原因：xcode里面选择对应的commond line tool
解决
xcode-->preferences-->localtions-->commond line tools 选中对应的即可