I am getting the same message when setting up UserDefaults with combine. The code is simple enough     var twitterOauthTokenSecret: String {         willSet{             objectWillChange.send(self)         }     }     init() {         notificationSubscription = NotificationCenter.default.publisher(for: UserDefaults.didChangeNotification).sink { _ in                    self.objectWillChange.send(self)         }     } Not sure I understand the recommended solution above by @gandhi_ms. Can you clarify how I would use this in a this case?

@brandonK212 where you able to get a sample of the differences between Snapshot and Placeholder I am having the same issue.

I switched to a stand alone Watch App and removed it completely from my app. You can just do #ifdef in the code, and then don't include the embedded object in the build settings

That did it, it was the alway on scroll bars! Amazing

Issue has been resolved... I hate to paraphrase it - "Your doing it wrong"

I read thru the alternative thread... and seems that the problem is different but similar to mine.

I am also getting this same error message - Invalid Swift 2020-09-25 19:35:46.281502-0400 XXXX WatchKit Extension[1012:18958] [default] lookupMainFuncAddressInMachHeader:71: Invalid Swift entry point data 2020-09-25 19:35:46.282071-0400 XXXX WatchKit Extension[1012:18958] [default] lookupMainFuncAddressInMachHeader:77: Swift entry point addres could not be determined. And when the program then tries to access the WatchKit ExtensionDelegate I get nil

Resolved.. problem was button shapes were causing SwiftUI on tvOS to not process correctly.. went back to "default" buttons.. and works as expected.

Well, I tired to get some help on StackOverflow and they didn't get the issue... https://stackoverflow.com/questions/64082376/couldnt-cast-swiftui-extensiondelegate-to-extensiondelegate/64085463#64085463 - Just to be clear, it is not a problem with @environmentObjects - that is working well - passing between the various views... the issue is with passing to a class.

What was your ultimate issue here.. I am trying to covert a Core Data UIKit App to SwiftUI Architecture, and I am getting this in previews and when I launch in the Simulator, The app launches and the immediately shuts down (closing the debug window).

I am having this same issue, have you figured out how to debug this? I have a project I’ve not worked on for about 5 months, and when I try to open it now.. Xcode hangs.

It seemed to be fine in the simulator. As of this morning, I deployed the app to my device via a USB-C cable and it then pulled down the data from CloudKit. So there must be some difference between deploying the app via TestFlight and via Xcode directly.I will have to figure out what happens longer term.

I'm closing this question for now, as deploying the same version of the app via the USB-C cable from the Xcode to the iPad worked. It now pulled the data from CloudKit.

I am still seeing this error on my iMac, I can only deploy my code via my MBP at this time. Any suggestions would be appreciated.

I am still not seeing this work, I am the very latest developer beta, has this been enabled yet?