Use custom declarative activity in State Machine

Question

I'm trying to add a custom activity declared in xaml to a state machine. The activity is contained in the same project/assembly as the original state machine. When I try to do it, a Visual Studio popup error appears: Exception has been thrown by the target of an invocation

Is it a known bug?

Answer 1

That should just work. I would check the you custom XAML activity for issues.