Trying to develop a little Watch app in Swift, and it's been kind of a miserable experience. I constantly get transport errors trying to connect to my watch. I've tried the trick of putting the Mac and the watch on my iPhone hotspot instead of just on the same WiFi network, but I am not sure that actually helps. I can run maybe once or twice, and then the transport error happens and it's very hard to get XCode to recognize the watch again. Also, when it DOES connect, it seems that XCode almost always loses the debugging connection (I just continue, and it IS actually running on the Watch at that point, but no debugger).
Difficult to use XCode with Apple Watch
I have spent the last 3 days troubleshooting connection issues with 26.2 (iOS/Watch) with Xcode 26.2 and have been lead NOWHERE.
I think there is a serious issue with 26.2 regarding watchOS development.
We'd appreciate getting bug reports about any difficulties connecting to your Apple Watch from Xcode. Before reporting this issue, please install the CoreDevice logging profile to your Mac, iPhone, and Apple Watch, and also the sysdiagnose profile to Apple Watch. These profiles enable us to gather logs that help detail the issue you're experiencing. Once you reproduce the connection issue after installing those profiles, please capture a sysdiagnose from both the Mac and Apple Watch, and attach the files to your bug report so that we have the logs to investigate.
Once you file the bug report with the sysdiagnose files attached, make sure to post the FB number here for the record.