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Toast throws exception on Windows

See original GitHub issue

Description

With the most recent updates Toast is now throwing an exception on Windows but works fine on the Mac. This is a simple mod to the standard Maui app that illustrates the problem. If you run this and set a breakpoint on the exception it stops when you press the button.

using CommunityToolkit.Maui.Alerts;
namespace TooltipsSample;

public partial class MainPage : ContentPage
{
	int count = 0;

	public MainPage()
	{
		InitializeComponent();
	}

	private void OnCounterClicked(object sender, EventArgs e)
	{
		count++;
        CancellationTokenSource cancellationTokenSource = new CancellationTokenSource();
        var toast = Toast.Make("Toast");
        try
        {
#pragma warning disable CS4014 // Because this call is not awaited, execution of the current method continues before the call is completed
            toast.Show(cancellationTokenSource.Token);
#pragma warning restore CS4014 // Because this call is not awaited, execution of the current method continues before the call is completed
        }
        catch (Exception ex)
        {
            // This gives an exception on Windows
        }
 
        if (count == 1)
			CounterBtn.Text = $"Clicked {count} time";
		else
			CounterBtn.Text = $"Clicked {count} times";

		SemanticScreenReader.Announce(CounterBtn.Text);
	}
}

Steps to Reproduce

See the description for sample code.

Link to public reproduction project repository

https://github.com/dotnet/maui

Version with bug

7.0 (current)

Last version that worked well

Unknown/Other

Affected platforms

I was not able test on other platforms

Affected platform versions

windows10.0.19041

Did you find any workaround?

use try/catch to not crash but Toast not working

Relevant log output

{"Could not load file or assembly 'Microsoft.Windows.AppNotifications.Builder.Projection, Version=1.2.0.0, Culture=neutral, PublicKeyToken=null'. The system cannot find the file specified.":"Microsoft.Windows.AppNotifications.Builder.Projection, Version=1.2.0.0, Culture=neutral, PublicKeyToken=null"}