Xcode - ARKit - Tutorial - Lesson 2 - Keychain password pop-up error

Xcode - ARKit - Tutorial - Lesson 2 - Keychain password pop-up error *Apple support chat - reinstall Xcode https://stackoverflow.com/questions/46774005/codesign-wants-to-access-key-access-in-your-keychain-i-put-in-my-login-passwo