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szilardd's avatar
szilardd
Brass Contributor
Nov 25, 2021
Solved

Application crash on Windows 10 Enterprise LTSC when using AppInstaller

I have a .NET Windows Forms app packaged with MSIX and Automatic Updates configured using the AppInstaller feature.   It works fine on Windows 10 Professional edition, but my target version is Wind...
  • szilardd's avatar
    szilardd
    Dec 01, 2021

    I got it working using the `Microsoft.Windows.SDK.Contracts` NuGet package instead of the approach described above (had to convert from package.config to PackageReference)

    https://docs.microsoft.com/en-us/windows/apps/desktop/modernize/desktop-to-uwp-enhance#earlier-versions-of-net-install-the-microsoftwindowssdkcontracts-nuget-package

    Sample code

     

    var packageManager = new PackageManager();
var currentPackage = packageManager.FindPackageForUser(string.Empty, Package.Current.Id.FullName);
var result = await currentPackage.CheckUpdateAvailabilityAsync();

if (result.ExtendedError != null) {
    LogError("Update availability error", result.ExtendedError);
}

var hasUpdate = (result.Availability == PackageUpdateAvailability.Available);

if (hasUpdate) {
    // there is an update available
}

     



szilardd's avatar
szilardd
Brass Contributor
Nov 29, 2021

It seems like Windows 10 Enterprise LTSC build 1809 doesn't support checking for updates programmatically.

 

I followed the description from here https://techcommunity.microsoft.com/t5/windows-dev-appconsult/handling-application-updates-with-app-installer-and-msix-in/ba-p/355389

 

private async Task CheckForUpdates()
{
    var result = await Package.Current.CheckUpdateAvailabilityAsync();
    if (result.Availability == PackageUpdateAvailability.Available)
    {
        MessageBox.Show("There's a new update! Restart your app to install it");
    }
}

It crashes the app, even though I have global error handling configured.

 

After I removed the code and related DLLs, the app installer is working. 

szilardd's avatar
szilardd
Brass Contributor
Dec 01, 2021

I got it working using the `Microsoft.Windows.SDK.Contracts` NuGet package instead of the approach described above (had to convert from package.config to PackageReference)

https://docs.microsoft.com/en-us/windows/apps/desktop/modernize/desktop-to-uwp-enhance#earlier-versions-of-net-install-the-microsoftwindowssdkcontracts-nuget-package

Sample code

 

var packageManager = new PackageManager();
var currentPackage = packageManager.FindPackageForUser(string.Empty, Package.Current.Id.FullName);
var result = await currentPackage.CheckUpdateAvailabilityAsync();

if (result.ExtendedError != null) {
    LogError("Update availability error", result.ExtendedError);
}

var hasUpdate = (result.Availability == PackageUpdateAvailability.Available);

if (hasUpdate) {
    // there is an update available
}

 



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