Invalid Bundle. Apps that have 'arm64' in the list of UIRequiredDeviceCapabilities in Info.plist must only contain the arm64 slice.
I'm having a frustrating time with getting a simple iMessage Only App into the App Store. I'm using XCode 9 Beta 5. Whenever I Validate or Upload to App Store I always get this error. I've changed the Required Device Capabilities keys to just arm64. I've even added it to the iMessage Extension Info.plist. Then set my Architectures and Valid Architectures to just arm64 on the project and both Targets. I've tried what other's have done from different posts, still nothing. Spent hours and hours trying all different combinations. I've re-built the app 3 times in the beta XCode 9 and XCode 8.