title: How to define a userdefined Type in Rehosted Wokrlfow Designer
body: <p>If a type is already included in the referenced assemblies of the rehosted workflow designer, and ready to be selected, why do I get a workflow Designer compiler error when I define a variable of that type?<br>
  And how do I define a userdefined Type in my C# code or the rehosted workflow to make it recognizable by the workflow designer. </p>