How to solve the Error MSB3644 in Visual Studio 2019 com. edition?

Question

I have a dev machine with

Windows 10 version 1909 (build 18363.1016)
Visual Studio Community edition 2019 version 16.7.2
.net plataform sdk 5.0.100-preview.5.20279.10 (and olders)

I install net plataform sdk 5.0 to run Fluid UI Desktop apps (using C#). When i create and run a blank template project, i got the error MSB3644

Error MSB3644 The reference assemblies for .NETFramework,Version=v5.0 were not found. To resolve this, install the Developer Pack (SDK/Targeting Pack) for this framework version or retarget your application. You can download .NET Framework Developer Packs at https://aka.ms/msbuild/developerpacks WinUIdesktop2 C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\MSBuild\Current\Bin\Microsoft.Common.CurrentVersion.targets 1177

On my comand line i checked the plataform SDK installed using dotnet --list-sdks

C:\Users\my_profile>dotnet --list-sdks
2.1.201 [C:\Program Files\dotnet\sdk]
2.1.202 [C:\Program Files\dotnet\sdk]
2.1.402 [C:\Program Files\dotnet\sdk]
2.1.403 [C:\Program Files\dotnet\sdk]
2.1.504 [C:\Program Files\dotnet\sdk]
2.1.602 [C:\Program Files\dotnet\sdk]
2.1.700 [C:\Program Files\dotnet\sdk]
2.1.802 [C:\Program Files\dotnet\sdk]
3.1.401 [C:\Program Files\dotnet\sdk]
5.0.100-preview.5.20279.10 [C:\Program Files\dotnet\sdk]

C:\Users\my_profile>

Any ideas on how to solve this issue?

I am suffering from same problem. Thank you for raising this. — Buddhika Chathuranga
Is stackoverflow.com/questions/49268779/… relevant? I know it's .NET Core, but still. — AKX
@AKX AFAIK, there is no such thing as ".NET Framework 5.0", there is ".NET 5.0" which is technically the successor of .NET Core 3.x — Klaus Gütter
you have to use 16.8 preview to use .net 5.0 previews or in option select usage of preview SDK, but I have no idea if it works. — magicandre1981

magicandre1981 magicandre1981 · Accepted Answer · 2020-08-29T14:04:30

Microsoft states that you need a 16.8 preview version to use .net 5.0, in case of .NET 5 Preview 8 you need Visual Studio 2019 16.8 Preview 2:

.NET 5 Preview 8 requires Visual Studio 2019 16.8 Preview 2 to take full advantage of all its features. .NET 5 Preview 8 won't work properly in earlier versions of Visual Studio.

You use 16.7.2 so it is not compatible.

How to solve the Error MSB3644 in Visual Studio 2019 com. edition?

2 Answers