Xcode Run Apple Watch target results in Finished running app on Watch

I've also restarted my Mac, my iPhone and my Watch. It then worked.

I restarted everything and it still didn't work. However, after the restart when I first run the app I received an error: Device doesn’t support wireless sync. With this, after disabling the wifi on the watch, things went back to normal.

From my experience, restarting all devices (iPhone, watch, and mac) sometimes allows the app to build on the watch, but it is very frustrating and a long process for a "maybe."

Especially when I get the Device doesn't support wireless sync. the most consistent solve has been disabling wifi on both the watch and the iPhone. Also, have the iPhone connected directly to the computer with a genuine cord.

Good luck.

Also, if you were using the simulator, stop it and quit the simulator before trying to compile to the real device.