WinForms .net core 3 app fails to find runtime for Desktop Apps

[mscrivo]

Steps to reproduce

Create a WinForms app that targets netcoreapp3.0 and build it.
Run it on a machine that only has the .net core 3 Desktop runtime installed.

Expected behavior

The app should run with the desktop runtimes installed.

Actual behavior

Observe that the app does not load, and you see this in the event viewer:

A .NET Core application failed.
Application: program.exe
Path: C:\Program Files (x86)\Program\program.exe
Message: It was not possible to find any compatible framework version
The specified framework 'Microsoft.NETCore.App', version '3.0.0' was not found.

• No frameworks were found.

You can resolve the problem by installing the specified framework and/or SDK.

The .NET Core frameworks can be found at:

• https://aka.ms/dotnet-download)

Environment data

It works fine if you install the full SDK.

[dagood]

Did you install the .NET Core Runtime too? This banner on https://dotnet.microsoft.com/download/thank-you/dotnet-runtime-3.0.0-windows-x64-desktop-runtime-installer is meant to let you know:

We don't have an installer for 3.0 that bundles both together (or both x86 and x64 together), more info about that at https://github.com/dotnet/core-setup/issues/7763.

[mscrivo]

I see, thank you.