Hi people, The instruction “xcode-select -s /Library/Developer/CommandLineTools” worked for me as well. Cheers.

In my case (MacBook Pro 14 M1) these messages have been showing after executing several commands like: xcodebuild, git, swift, ... (command tools connected with xcode). It is so annoying. Quick fix to get rid of warnings is to switch a Terminal App to 'Open using Rosetta' (Applications -> Terminal -> 'Get Info') option. But after doing a quick fix, all commands executed in Terminal get a serious lag. And it's even more annoying! So I switched back to not to 'open using rosetta'. It's pretty clear that the problem refer somehow to native M1 software compatibility of xcode developer package. Waiting for updates.