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I try to replace my dedicated WinUI Version of an app with the one I published from my .net MAUI project. With this command I was able to publish an MSIX file:

dotnet publish -c Release -f:net7.0-windows10.0.22621.0

Unfortunately, when I upload it to the Parnter Center to submit it to the Windows Store I get this error:

A previous submission for this app was released with a Windows 10/11 .msixbundle or .appxbundle. Subsequent submissions must continue to contain a Windows 10/11 .msixbundle or .appxbundle.

I tried adding the MsBuild parameters I used for WinUI but without success:

/p:AppxBundlePlatforms="x86|x64|ARM64"
/p:AppxBundle=Always
/p:UapAppxPackageBuildMode=CI

How can I publish my .net MAUI project as an .msixbundle or .appxbundle?

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  • Have you generated .msixbundle and. appxbundle files? Commented Dec 7, 2022 at 8:55
  • @JianweiSun-MSFT my question is how I can generate those. As I wrote above, I only managed to get an .msix and didn't find a way to create a .msixbundle or an appxbundle. If you have a tutorial or a guide that would be much appreciated if you could post that. Commented Dec 7, 2022 at 13:38
  • You can try the solution in my answer. Commented Dec 15, 2022 at 1:00
  • Thanks @JianweiSun-MSFT I saw that. I managed to get it working locally but still working on integrate it into my build and release process via azure devops. There I have currently an error. I'll keep you posted once that works too. Commented Dec 15, 2022 at 10:03
  • Have you solved the error? Commented Dec 23, 2022 at 8:30

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About how to build a MSIX bundle, you can refer to Bundle MSIX packages. It assumes that you have already converted your existing x86 and x64 versions of the Windows installer to MSIX packages. I tested it and .msixbundle file was created successfully.

In addition, you can also read this document about Publish a .NET MAUI app for Windows with Visual Studio. It was recently updated. I also follow this step to publish a MSIX package.

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