ERROR: "Incompatible types:" -- Already RTM

When I use your example;

type
TJCLFileVersionInfo= class(TObject)
...
end;
....

with fsScript1.AddClass(TJclFileVersionInfo,'TObject') do
AddConstructor('constructor Create(const FileName: string)',CallMethodFileInfo);
...

function TfsScriptDM.CallMethodFileInfo(Instance: TObject; ClassType: TClass;
const MethodName: String; var Params: Variant): Variant;
begin
Result := Integer(TJclFileVersionInfo(Instance).Create(Params[0]));
end;

=======
script

---

program test;

var fi : TJCLFileVersionInfo;

begin
fi := TJCLFileVersionInfo.Create('c:\trek-setup.exe');
Writeln(fi.fileversion);
end.
========

and then when it runs it errors WITH:

Incompatible types: 'Class TJclFileVersionInfo', 'Class TJclFileVersionInfo'

I don't understand why? Looks correct to me.
I reviewed docs and code but couldn't find anything that helps.
Can you point me in the right direction?

Thanks,
Brian