Hi everyone,
I’m a student developer currently building a watchOS app that uses HealthKit and HKWorkoutSession to estimate core body temperature from real-time heart rate data. The app runs well in the simulator, but testing on a physical Apple Watch has been extremely difficult.
Each time I try to run the app from Xcode (Version 16.3), the build gets stuck on:
“Copying shared cache symbols from MyWatchName (0% completed)”
Sometimes it just stops stating connection failure. However, more often no errors are shown, but the sync never finishes. I’ve tried the following without success:
Restarting the watch, iPhone, and Xcode
Switching networks (Wi-Fi and hotspot)
USB wired pairing
Resetting developer settings and trust prompts
Deleting derived data
Rebuilding the project
This is especially limiting for a real-time health tracking app where I need to monitor HKLiveWorkoutBuilder data while the screen sleeps — which can’t be tested effectively in the simulator.