c# 4.0 - Impromptu: Could not load type because it attempts to implement a class as an interface -

i have started using impromptu after recommendation on stack.

i believe have implemented correctly getting error "could not load type because attempts implement class interface"

in portable class library have following model:

public class route {     public user user { get; set; } }  public class user {     public name name { get; set; } }  public class name {     public string title { get; set; }     public string firstname { get; set; }     public string middlename { get; set; }     public string lastname { get; set; } } 

and have created following iclasses in mvc project:

public class iroute {     public iuser user { get; set; }  }  public class iuser {     public iname name { get; set; } }  public class iname {     [required]     public string firstname { get; set; }     [required]     public string lastname { get; set; } } 

and in controller have following being sent view:

route sendthis = new route(); return view(sendthis.actlike<iroute>()); 

but error "could not load type because attempts implement class interface"

i cannot work out have done wrong. can please?

thanks

i hadn't changed local classes "interface".

public interface iroute {     iuser user { get; set; }  }  public interface iuser {     iname name { get; set; } }  public interface iname {     [required]     string firstname { get; set; }     [required]     string lastname { get; set; } }