Make a package MSIX with a multi-projects MAUI : is it possible ?

[ahipki]

Hello,
I followed a video tutorial to make a MSIX package to deploy my app on another computer.
https://www.youtube.com/watch?v=FNwv_W3TtSU&t=965s

It worked well with a basic MAUI app (I created a New project MAUI App on VS 2022)

But my situation is completely different, I have other projects.

So I added a new project in my solution "MAUI Class Library"
in Class1. I renamed it TestMaths.cs. I made it static

         public static int MaMethodeTestSum(int a, int b)
        {
            return a + b;
        }

and called it on the click method in the basic MAUI app : (MainPage.xaml.cs)

        private void OnCounterClicked(object sender, EventArgs e)
        {
            var sum = TestMaths.MaMethodeTestSum(count, 2);
            CounterBtn.Text = $"{count} + 2 = {sum}";
            count = sum;

            SemanticScreenReader.Announce(CounterBtn.Text);
        }

Then I tried to package it with the command line powershell :
msbuild .\TestPackAppMAUI.csproj /restore /t:Publish /p:TargetFramework=net8.0-windows10.0.19041 /p:configuration=release /p:GenerateAppxPackageOnBuild=true /p:Platform=x64 /p:AppxPackageSigningEnabled=true /p:PackageCertificateThumbprint="9CC82009A9DEA5EBC388B4C736386BA3DF92230E" /p:PackageCertificatePassword="myPassword"

My question is : Has anyone ever managed to make a msix installer with the default MAUI App + a MAUI Class Library linked to the app ? And if yes can I have a tutorial please ?
I tried to make nugets with Azure devops pipelines in my real app and I have problems with this method so I went back on this Publish Method with Visual Studio 2022.

I also tried the Method with right click > Publish but it doesn't work either.

(sorry English is not my native language)

[ahipki]

Someone found it touching projects randomly !!
To publish an MAUI app with more than the App (example, a class library), you need to remove all pdb files from the projects : right click on the projects except the app > Properties > Build > Last menu : Debug symbols : No symbols are emitted. (And I removed in the csproj the debug lines and keeped the release lines).
Then it works.