I am still working on the app, but I have run into a problem I don't understand. I decided to save the images and information as a combination of a json encoded file and then related UUID identified image files in the document directory. Periodically when saving the image I get the following error:

1) Here's debug I have in my app:

2022-12-30 11:51:38.673804-0500 Challenge77[9990:3528132] 
[claims] 27328842-F382-4DBF-BE78-27B42569217E 
grantAccessClaim reply is an error: Error Domain=NSCocoaErrorDomain Code=4101 
"Couldn’t communicate with a helper application."
UserInfo={NSUnderlyingError=0x600002f29fb0 {Error Domain=PHAssetExportRequestErrorDomain Code=0 
"The operation couldn’tbe completed. (PHAssetExportRequestErrorDomain error 0.)" 
UserInfo={NSLocalizedDescription=The operation couldn’t becompleted. (PHAssetExportRequestErrorDomain error 0.),
NSUnderlyingError=0x600002f2a760 {Error Domain=PAMediaConversionServiceErrorDomain Code=2 
"The operation couldn’t be completed.(PAMediaConversionServiceErrorDomain error 2.)" 
UserInfo={NSLocalizedDescription=The operation couldn’t be completed.
(PAMediaConversionServiceErrorDomain error 2.)}}}}}

Any suggestions on what I am doing wrong?

My code can be found on github at - https://github.com/TheApApp/Challenge77

(formatted error to make it easier to read)

Note, if I hit the home button on the simulator and go back in, I can save the next image no problem. Also, when this error happens, the Add button becomes disabled until I hit the home button. I assume the app is in some kinda of hung state.

It appears that this is a thread issue in my ImagePicker. The warning shows up as

Publishing changes from background threads is not allowed; make sure to publish values from the main thread (via operators like receive(on:)) on model updates.

in the following function:

        func picker(_ picker: PHPickerViewController, didFinishPicking results: [PHPickerResult]) {
            picker.dismiss(animated: true)  // let's get rid of the picker

            guard let provider = results.first?.itemProvider else { return } // let's see if there is anything in the provider if not bail out

            if provider.canLoadObject(ofClass: UIImage.self) {
                provider.loadObject(ofClass: UIImage.self ) { image, _ in
                    self.parent.image = image as? UIImage // WARNING SHOWS HERE
                }
            }
        }

I am not sure how to address this. I tried to wrap this in a Task on MainActor.run but got a message that this is invalid in Swift 6.

On the call for the func wrap it in

Task { @MainActor in
  // call to the picker
}

or

DispatchQueue.main.async {
  provider.loadObject(ofClass: UIImage.self ) { image, _ in
      self.parent.image = image as? UIImage
  }
}

I ran into a similar error, it seems to be a bug in Simulator. Choose the second picture then it successfully saves.

https://developer.apple.com/forums/thread/699155