I recommend reading this, it’s written in great detail, so I don’t need to show my ugliness
https://www.jianshu.com/p/e5ac7b05750a
Question 1.
Xcode报错误信息：No account for team "QMP96B5DPW". Add a new account in the Accounts preference pane or verify that your accounts have valid credentials.
Solution:
Search for QMP96B5DPW and modify it to your own ID.