An unexpected internal error has occured

This error occurs when I execute de first exemplo of the devguide.pdf

gnue-forms appserver://appserver/form/address_person

Traceback (most recent call last):
   File 
"C:\python24\Lib\site-packages\gnue\common\rpc\drivers\xmlrpc\ServerAdapter.py", 
line 281, in do_POST
    params)
   File 
"C:\python24\Lib\site-packages\gnue\common\rpc\drivers\xmlrpc\ServerAdapter.py", 
line 124, in call
    result = self._tcpServer._dispatch (method, params)
   File "C:\Python24\Lib\SimpleXMLRPCServer.py", line 406, in _dispatch
    return func(*params)
   File 
"C:\python24\Lib\site-packages\gnue\common\rpc\drivers\xmlrpc\ServerAdapter.py", 
line 138, in _call
    result = getattr (storedObject, method) (*parameters)
   File "C:\python24\Lib\site-packages\gnue\appserver\geasList.py", line 
247, in count
    result = len (self.__recordset)
   File "C:\python24\Lib\site-packages\gnue\appserver\data.py", line 
1248, in __len__
    return len (self.__resultSet) + len (self.__add) + self.__added \
 TypeError: __len__() should return an int

_______________________________________________
Gnue-dev mailing list
[email protected]
http://lists.gnu.org/mailman/listinfo/gnue-dev

begin:vcard
fn;quoted-printable:Andr=C3=A9 Souza Pinto
n;quoted-printable:Souza Pinto;Andr=C3=A9
org;quoted-printable;quoted-printable:ASP Inform=C3=A1tica Ltda;Programa=C3=A7=C3=A3o
adr:Bairro Cristo Redentor;;Rua Sarmento Leite, 105;Caxias do Sul;RS;95084-000;Brasil
email;internet:[email protected]
title;quoted-printable:Diretor T=C3=A9cnico
tel;work:54 3228.7233
tel;fax:54 3228.7290
tel;home:54 3222.7725
tel;cell:54 9986.3782
url:http://www.aspinformatica.com.br
version:2.1
end:vcard