Server Error in '/' Application. No parameterless constructor defined for this object

Question

The callstack shows the following:

[MissingMethodException: No parameterless constructor defined for this object.]
System.RuntimeTypeHandle.CreateInstance(Ru         


        

Answer 1

The root of my problem was also SelectList.

I had this:

<%: Html.DropDownListFor(m => Model.Destinations, Model.Destinations)%>

When I should have had this:

<%: Html.DropDownListFor(m => Model.Destination, Model.Destinations)%>

Destination is the user's selection, Destinations is the list of possible values. Using the plural SelectList twice caused the problem.