Load GameAssembly.dll failed

I need to integrate a C# xaml library on uwp.

I refer to this（https://github.com/TautvydasZilys/unity-uwp-il2cpp-with-csharp-project-example） to modify the post-generation project

the modification works on unity 2019,
But on Unity 2020, a prompt box of `Load GameAssembly fail` will appear.

Does anyone know this problem?
What is the possible reason?

 

this is a sample project which can reproduce this issue
https://github.com/sdkbox/AdDealsUnitySample

1. open with unity 2020.3.6
2. export uwp + build type: xaml project
3. open the generated project with vs 2019
4. launch in vs 2019 (x64)
5. launch failed.

If I switch to unity 2019 and perform steps 2-5 above, then work fine.

I didn't see any error logs. So I don't know why.

thanks.

 

i compare the output between unity 2019 with unity 2020, it's same.

 

i have checked this, copy the GameAssembly.dll to the path, is the same result.

have you try your project (https://github.com/TautvydasZilys/unity-uwp-il2cpp-with-csharp-project-example) on `untiy 2020.3`

 

I met the same issue today. I add the following config to the c# project file and the problme is fixed for me on 2020.3 and 2021.2

  <ItemGroup>

   <!--Add this line-->

    <Content Include="$(UnityWSAPlayerDir)Players\UAP\il2cpp\$(PlatformTarget)\$(Configuration)\baselib.dll" />

    <Content Include="$(SolutionDir)build\bin\$(Platform)\$(Configuration)\GameAssembly.dll" />

    <Content Include="$(SolutionDir)build\bin\$(Platform)\$(Configuration)\GameAssembly.pdb" />

  </ItemGroup>

 

Could you clarify more about c# prolect file where u placed the above config?