[iOS/Swift]Terminating app due to uncaught exception 'NSGenericException', reason: 'Unable to activate constraint with anchors < > because they have no common ancestor. Does the constraint or its anchors reference items in different view hierarchies? ..

That's illegal이라는 말에 상처 받는다.

 

addSubview에 안넣은 UI 부분이 있었다 ~ ㅜ ㅜ

 

addSubview에 안넣은 view들이 있는지 확인해보기!