Cannot build Blog-ModernizationStory

[ScruffR]

I tried to build the Blog-ModernizationStory solution but can't seem to get it working.

I've tried with the most recent VS Community 2019 (16.8.6 as well as 16.9.0 Preview 4.0) but always get this for the WAP project

and when removing that from the solution it builds but then throws this

Application log:

Activation context generation failed for "C:\temp\test\Windows-AppConsult-Samples-DesktopBridge-master\Blog-ModernizationStory\DynamicWindowsForms\bin\x64\Debug\netcoreapp3.1\DynamicWindowsForms.exe".
Error in manifest or policy file "C:\temp\test\Windows-AppConsult-Samples-DesktopBridge-master\Blog-ModernizationStory\DynamicWindowsForms\bin\x64\Debug\netcoreapp3.1\DynamicWindowsForms.exe" on line 2. 
The attribute internalKeyToken is not permitted in this context on element assemblyIdentity.