WF4 RC - Cannot create unknown type when loading WF Service from loose Xaml with ActivityXamlServices

Question

I am trying to host a WF4 (RC) Service dynamically. I have a test solution with two projects. The first is a declarative workflow service library with one root Flowchart act

Answer 1

Open source code of the activity. Change "xmlns:local="clr-namespace:DeclarativeServiceLibrary1" to xmlns:local="clr-namespace:DeclarativeServiceLibrary1;assembly=DeclarativeServiceLibrary1".