[BUG] Application crashes under Windows when running in desktop mode

[pgrawehr]

Is there an existing issue for this?

• I have searched the existing issues

Did you read the "Reporting a bug" section on Contributing file?

• I have read the "Reporting a bug" section on Contributing file: https://github.com/CommunityToolkit/Maui/blob/main/CONTRIBUTING.md#reporting-a-bug

Current Behavior

Open the CommunityToolkit.Samples solution and add this line to the csproj to run in Windows desktop mode (not in store mode):

<WindowsPackageType Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'windows'">None</WindowsPackageType>

also change the commandName in launchsettings.json to "Project". Then run the project and try out the "Snackbar" and "ToastBar" examples.

The application crashes with some low-level error.

Expected Behavior

A notification window is shown

Steps To Reproduce

See above

Link to public reproduction project repository

https://github.com/CommunityToolkit/Maui/

Environment

- .NET MAUI CommunityToolkit: Latest
- OS: Windows 10
- .NET MAUI: 8.0

Anything else?

When running as store app, everything works as expected.

[VladislavAntonyuk]

Snackbar uses ToastNotificationManager, which is Obsolete on Windows and replaced by AppNotification. However, AppNotification is not displayed in Desktop mode.