Xcode 真机运行报错unable install

错误信息

This app contains an app extension with an illegal bundle identifier. App extension bundle identifiers must 
have a prefix consisting of their containing application's bundle identifier followed by a '.'.

查了好多资料并不能解决我的问题，问题产生的最终原因是有个过期的证书未删除导致的，在钥匙串中删除即可正常运行了。

参考资料，并未能解决

Stackoverflow

CSDN