Hi Eskimo. Big fan! :) Did you notarise your Developer ID build? So won't work even when debugging? Need to build, notarize, and only then Network Extension will work? I also got confused as noticed in this thread you mention it like sysex. So for Apple Dev signing it must be App Extention but System Extension for Dev ID, right? I went and created System Extension same as App Extension with linking to app etc. Added System Extension capability to app's App ID (recreated provisioning profile). Now I don't get Sys Ext output from Console at all now

Thank you a lot! That's exactly how I'm debugging it. Building, copy to Applications, and monitor Console for logger messages I added to debug. Getting The operation couldn’t be completed. (OSSystemExtensionErrorDomain error 9.) now and trying to figure out what does that mean. Any clues? Is there any place with a list of those error codes? Also getting a bunch of this: Tearing down XPC connection due to setup error: Error Domain=NEAgentErrorDomain Code=2 "(null)"

Submitted as FB15119761

Same issue here with Xcode 16 Release. Even fresh created iOS 15 project with widgets target added, won't show widgets in widgets list. Xcode 15 works fine

@JagCesar2 @luksape was it fixed for you? I'm trying with WatchOS 11.2 Beta and still same behavior showing "Open on iPhone" view instead of going into watch app