After all these years I'm STILL getting this message. WHY hasn't Apple fixed this yet?! I'm on version Version 14.3.1. Is there any way to get this working? Developing for Apple Watch has been a total nightmare from day 1, I don't understand how it hasn't gotten any better. This error keeps me from testing my app on my Watch. My Watch is obviously unlocked. I tired every troubleshooting step I've read in the dozens of other posts about this issue.
Apple Watch: Waiting for first unlock
After all these years, Xcode 15 beta has a new device pairing and debugging stack. Please try it out!