*.runtimeconfig.json not copied to out put dir when project referenced

[kirsan31]

Visual Studio Version: 16.5.2

Summary:
When reference one .net core exe project (for example WinForm) from other, after build, files: dll, exe , pdb and App.config (if present) are copied to out put directory of main project, but *.runtimeconfig.json is not copied. So, running this exe lead to very confusing error:

Steps to Reproduce:

1. Create solution with WinForm core project.

2. Add to solution 2-d WinForm core project.

3. Reference one from another.

4. Try run (Process.Start) referenced exe from main project.

Minimal repro:
Reftest.zip

Expected Behavior: All necessary files from referenced project must be copied.

Actual Behavior: *.runtimeconfig.json not copied.

User Impact: you can not run referenced exe file from main project.

[urosjovanovic]

Any updates on this issue?
Is there a workaround at least?

It also happens when you add a project reference to a net core console app from asp.net core service, *runtimeconfig.json for the console app is not copied to the output of asp.net core app which leads to this error:

A fatal error was encountered. The library 'hostpolicy.dll' required to execute the application was not found in 'C:\Program Files\dotnet'.

When trying to run the console app.

[kirsan31]

This is not minor issue, this is regression from .net framework.
cc @dsplaisted sorry for cc you, I selected most active committer 😕

[dsplaisted]

This is the same as #1675. You can find a workaround in that issue.