How to fix a missing assembly link "Microsoft.Xaml.Interactivity.dll" in the Windows Store App Solution?

Question

I have a solution for the Windows Store App that worked fine until I installed the Nuget packages and extensions from Catel. Now when I create the solution, I get about 12 build errors with the following description coming from my .csproj startup project:

Cannot resolve assembly or Windows metadata file 'Microsoft.Xaml.Interactivity.dll'

You might think, delete, then add the link again, but you cannot handle the links to the assembly of frames.

Answer 1

Right-click on your project => add link => Windows 8.1 (tab) => select "Behaviors SDK (XAML)"