Visual Studio 2022 Xamarin Forms UWP Create App Package Error: Task 'SignAppxPackage' failed. The application has failed to start because its side-by-side configuration is incorrect.

Andrea Christy 0 Reputation points
2024-07-02T11:18:30.5366667+00:00

I am trying to create an app package (for my Xamarin Forms UWP app) to upload to the windows store.

I am using Microsoft Visual Studio Professional 2022 (ARM 64-bit) Version 17.8.3.

In Visual Studio, I right-click on the UWP project -> Publish -> Create App Packages -> Choose Microsoft Store -> check all boxes -> click Create. It starts building and then a few seconds later I get this error:

Task 'SignAppxPackage' failed. The application has failed to start because its side-by-side configuration is incorrect.

In the Windows application event log, I see this error:

Activation context generation failed for "C:\Program Files (x86)\Windows Kits\10\bin\10.0.18362.0\arm64\signtool.exe.Manifest". Dependent Assembly Microsoft.Windows.Build.Appx.AppxSip.dll,version="0.0.0.0" could not be found. Please use sxstrace.exe for detailed diagnosis.

Xamarin
Xamarin
A Microsoft open-source app platform for building Android and iOS apps with .NET and C#.
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  1. Andrea Christy 0 Reputation points
    2024-07-02T17:00:46.69+00:00

    I found this issue:

    https://developercommunity.visualstudio.com/t/SignAppxPackage-not-working-on-ARM-Visua/10222824

    Fixed my problem by by adding this to my .csproj file:

      <ItemGroup>
    <PackageReference Include="Microsoft.Windows.SDK.BuildTools" Version="10.0.19041.1" PrivateAssets="all" />
  </ItemGroup>
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