Xcode 11 Beta won't build because of WatchKit?

Question

Worked on Xcode 10. Now in the beta I can't build I keep getting this error:

a "WatchKit" is not available when building for iOS Simulator. Consider using #if !os(iOS) to conditionally import this framework.

Answer 1

I had the same issue for one swift file in the WatchKit Extension. It turned out that it was a member of both the iOS app and the WatchKit Extension. I unticked the iOS app in the target membership section for the file so that it only belongs to the WatchKit Extension target. Now the project builds successfully.

Answer 2

Some of the functionality to communicate between the Apple watch with the iPhone/iPad used to be implemented within the WatchKit framework. But at some point it got moved into the WatchKitConnectivity framework.

If you look in your Target's "Build Phase" -> "Link Binary With Libraries" section, you will see the "WatchKit.framework" with "Optional" status. iOS13+ has become more "strict" so it won't build unless I completely remove the "WatchKit.framework", and instead add "WatchConnectivity.framework".

Also make sure your iPhone/iPad code refers use "import WatchConnectivity" instead of "import WatchKit".

Answer 3

We need to use "Conditional Imports" to resolve the issue.

Replace the import WatchKit header with the below code :

#if !os(iOS)
import WatchKit
#endif

This resolved my issue and build successfully in iOS 13.