Issue in Web services with QTP.

[qtpexpert]

Thanks for your quick response.
As per your suggestion, I tried to execute the script . But qtp is throwing the following error..

"The GetCityWeatherByZIP operation call failed.
The .NET Framework 2.0 WSE 3.0 toolkit returned the following error:
Parameter count mismatch.

Exception from: mscorlib
Parameter count mismatch.

Line (13): "WebService("WeatherService").GetCityWeatherByZIP, XMLstr". "

I have a doubt here..

Is it necessary to use the XMLwarehouse when using the webservices testing wizard
I did not add any input data in XMl structure...Because of that is it throw an error..

Any other ideas...

Thanks.