At LoungeBuddy we spent some time crafting our WatchKit app to perfection and learned a lot along the way. Hopefully these lessons are as helpful to you as they would have been to our past selves. 1. You’re not attaching to the parent process.If you developed with WatchKit for any meaningful amount of time, you’ve seen this dreaded error message: Error Domain=com.apple.watchkit.errors Code=2 "The