Thank you for your reply. As you said, after the message appears, wait for a while until the message disappears and the app can run. The time I waited is about five minutes. This waiting time is too long and delays the debugging process. After I turned off Apple watch, there was no such message and the running process went smoothly, so I think it should be the communication between Xcode and Apple watch that caused this issue. I want to know how to disconnect the communication between Apple watch and Xcode, because it is not needed for me. Thanks!

Thank you for sharing, this message will not appear after I turn off the Apple watch.

Thank you for your reply, I have tried your suggestions. This message did not appear after I turn off the Apple watch.