To date, the problem still has not been resolved. The thing that makes me angry is that as soon as I installed ver 16 of xCode, the download was performed and I also had the opportunity to try the "Predictive code". After a few days, xCode asked again to download and it DID NOT work anymore!!!!! MacBook Pro Apple M3 Max macOS Version 15.0 (Build 24A335) Xcode 16.0 (23051) (Build 16A242d)

After several attempts and searches on google, I solved it simply by updating the package dependencies.

sudo killall -9 com.apple.CoreSimulator.CoreSimulatorService it works great !!!

Solution by @vadimwe worked for me. Thanks a lot!