C#

System.Exception
  HResult=0x80070490
  Message=Element not found. (0x80070490)
  Source=<Cannot evaluate the exception source>
  StackTrace:
<Cannot evaluate the exception stack trace>

  This exception was originally thrown at this call stack:
    WpfApp1.MainWindow.CreateToastCollection() in MainWindow.xaml.cs
    WpfApp1.MainWindow.MainWindow() in MainWindow.xaml.cs

        private async void SetNotificationCollections()
        {
            string displayName = "Is Potato";
            string launchArg = "NavigateToPotato";
            System.Uri iconURI = new System.Uri("ms-appx:///Assets/icon.png");

<pre>
        ToastCollection licensingManagerToastCollection = new ToastCollection(
            "MyToastCollection",
            displayName,
            launchArg,
            iconURI);

        ToastNotificationManagerForUser defaultManager = ToastNotificationManager.GetDefault();

        try
        {
            ToastCollectionManager collectionManager = defaultManager.GetToastCollectionManager(); //CRASH/exception here.
            await collectionManager.SaveToastCollectionAsync(licensingManagerToastCollection);
        }
        catch
        {
            return;
        }
    }</pre>

System.Uri icon = new System.Uri("pack://application:,,,/Assets/icon.png");

public async void CreateToastCollection()
        {
            string displayName = "Is Potato";
            string launchArg = "NavigateToPotato";
            System.Uri icon = new System.Uri("pack://application:,,,/Assets/icon.png");

            // CRASH here
            ToastCollection licensingManagerToastCollection = new ToastCollection(
                "MyToastCollection",
                displayName,
                launchArg,
                icon);

            // Calls the platform to create the collection
            await ToastNotificationManager.GetDefault().GetToastCollectionManager().SaveToastCollectionAsync(licensingManagerToastCollection);
        }