From: brabuhr@... Date: 2009-10-17T07:43:34+09:00 Subject: Re: NANWSI: Not Another .NET Web Service Issue On Fri, Oct 16, 2009 at 5:55 AM, Massimo Bensi wrote: > I guess nobody has the answer to this, hence nobody was able to make > soap4r working with .NET web services? > Anybody could please suggest me a working SOAP library for Ruby that > works for real with .NET ws? > Sure appreciated, thanks! Sorry, for the delay. I also haved used soap4r successfully in the past to talk to .net web services. After your initial post, I grabbed your wsdl and ran it through wsdl2ruby, the result was the same as yours: the request appeared identical to the sample request provided by the web service but the response was parameter String cannot be NULL. I would recommend trying another library such as suggested by Dirkjan Bussink. Also, are you certain that the service itself is not the issue (e.g. it appears that the error references a parameter named String but the request only has a parameter testString)?