Git integration in Xcode should work, but doesn't. I used it some years ago when it at least did something, now (Xcode Version 16.2 (16C5032a)) it is just permanently confused. Most of the time, Xcode swears there is no git repo, until I use the terminal to commit everything. Then Xcode remembers that there is a repo, but as soon a I make the slightest change, it forgets again. Adding new files to git via Xcode? Hopeless. I've reported the issue through the Feedback.app, with screenshots and everything, but never heard back. It's a shame. I don't expect a second Tower, but at least get the basics working. Or remove the feature altogether -- this is just an embarrassment

I believe the warning is related to this paragraph in the Xcode 11.4 Release Notes: "Xcode now validates the deployment target of test bundle targets, and skips running any tests that are incompatible with the selected run destination. Some targets may require a change to their minimum deployment target build setting to continue to run on older run destinations. (39775813)" https://developer.apple.com/documentation/xcode-release-notes/xcode-11_4-release-notes As soon as I changed the Deployment Target on the *XCode project* file, the warning disappeared.