Cannot run unpackaged Windows app - MAUI 6.04

[mjfusa]

Description

Attempting to run a Windows EXE when published as unpackaged results in crash with an access violation exception (0xc0000005).
Project MauiApp6.sln attached.
MauiApp6.zip

Steps to Reproduce

Use Visual Studio 2022 17.3.0 Preview 2.0 to Create MAUI 6.04 app (includes Windows App SDK 1.1).
On command line:
dotnet publish -f net6.0-windows10.0.19041.0 -c Release -p:WindowsPackageType=None
C:\p\MauiApp5\MauiApp5\bin\Release\net6.0-windows10.0.19041.0\win10-x64\publish\MauiApp.exe

Event Viewer:
Faulting application name: MauiApp6.exe, version: 1.0.0.0, time stamp: 0x62571213
Faulting module name: coreclr.dll, version: 6.0.522.21309, time stamp: 0x625708f4
Exception code: 0xc0000005
Fault offset: 0x00000000001cda03
Faulting process id: 0x7a68
Faulting application start time: 0x01d884ee41834e9b
Faulting application path: C:\p\MauiApp6\MauiApp6\bin\Release\net6.0-windows10.0.19041.0\win10-x64\publish\MauiApp6.exe
Faulting module path: C:\p\MauiApp6\MauiApp6\bin\Release\net6.0-windows10.0.19041.0\win10-x64\publish\coreclr.dll
Report Id: 7ebddae7-c7bf-4508-b031-16ac57a7035d
Faulting package full name:
Faulting package-relative application ID:

Version with bug

6.0.400 (current)

Last version that worked well

Unknown/Other

Affected platforms

Windows

Affected platform versions

Windows 10.0.19041.0

Did you find any workaround?

No

Relevant log output

No response

[MagicAndre1981]

I get same on a new project and I it look I run into this issue from App SDK.

Looks like we need to wait for a new WindowsApp SDK update and merge into MAUI

[jfversluis]

If you're not going through an MSIX, you will need to make sure yourself that all prerequisites are installed. Check that you have the WinAppSDK Runtime installed: https://docs.microsoft.com/windows/apps/windows-app-sdk/downloads

Then it works for me, apart from some bugs that still show up :)

[ghost]

Hi @mjfusa. We have added the "s/needs-info" label to this issue, which indicates that we have an open question for you before we can take further action. This issue will be closed automatically in 7 days if we do not hear back from you by then - please feel free to re-open it if you come back to this issue after that time.

[AutumnEvans418]

I am also having this issue even after installing windows-app-sdk. I am running the latest as well using blazor maui bindings and trying to run the exe from the publish folder and getting the same error. I downloaded both sdks (64x installers) and it did not make a difference.

[mjfusa]

I was able to confirm that you can create an unpackaged (non-MSIX packaged) Windows app with the latest release of MAUI (6.0.4).
Here is the relevant documentation: Publish a .NET MAUI app for Windows - .NET MAUI | Microsoft Docs
Note that you’ll need to publish the app with the dotnet CLI, not in Visual Studio. For example:
In the project directory:
dotnet publish -f net6.0-windows10.0.19041.0 -c Release -p:WindowsPackageType=None

A couple of things I ran into and resolved:

1. The app would not start after building the unpackaged build. Event Viewer showed 0xC0000005 (Access Denied). This was resolved by removing all preview versions of MAUI and the Windows App SDK. See here for instructions: Remove outdated Windows App SDK runtime versions from your development computer - Windows apps | Microsoft Docs
2. The title bar of the Maui Windows app was disabled by default and consequently I could not resize, move, or close the app. I resolved this by turning off the .ExtendsContentIntoTitleBar flag in the MauiAppBuilder as follows:

public static MauiApp CreateMauiApp()
{
    var builder = MauiApp.CreateBuilder();
        builder
        .UseMauiApp<App>()
        .ConfigureLifecycleEvents(lifecycle =>
        {
#if WINDOWS
    lifecycle
    .AddWindows (windows => {
        _ = windows.OnWindowCreated ((window) => window.ExtendsContentIntoTitleBar = false);

    });
#endif
    })
    .ConfigureFonts(fonts =>
        {
                fonts.AddFont("OpenSans-Regular.ttf", "OpenSansRegular");
                fonts.AddFont("OpenSans-Semibold.ttf", "OpenSansSemibold");
        });

    return builder.Build();
}