Missing architecture. Apps built with Watch OS 5.0 and later SDKs must contain additional architectures
ERROR ITMS-90733 The WatchApp target is using “armv7k” under valid architectures; and the WatchApp Extension is using both “armv7k” and “i386” under valid architectures. When I build and try to deploy and build to the AppStoreConnect, I get the error message attached in this post. I tried several combinations of arm64_32, armv7, and armv64 but no luck! Any help is much appreciated. Thank you. try add arm64_32 architecture in your watch extension build setting, not watch . I solved the issue by switching the Build System setting from Legacy to "New Build System". You can find it by clicking