Ksoap,problem of deserialization

Hi,

I have got a  problem of deserialization with Ksoap :
I receive this response from my server but I can't treat the parameter
"2" of the response :

request:
.........
result = (SoapObject) transport.call (Vxlogin);

response
<SOAP-ENV:Body><namesp10:nOfElementsResponse xmlns:namesp10="Vx/Proxy">
<s-gensym19 xsi:type="xsd:int">2</s-gensym19>
</namesp10:nOfElementsResponse>
</SOAP-ENV:Body>


When I  use the method getPropertyCount(), getProperty(int),
getProperty(String) there is no result

the  exception is a  classcastexception

What's the problem?,
please help me !!!

Ed