I added a shared framework to share code between app and watch extension. Later I removed the shared framework since it cause lots of problems. I can build and run my app on iph
The "ITMS-90206" error was resolved in this post: Validation Error: Invalid Bundle. The bundle at ... contains disallowed file 'Frameworks'
The setting needs to be changed from Yes to No within the Build options of your WatchKit Extension:
Embedded Content Contains Swift Code: No