java - Web service (.net ), not working as expected -

i've programmed ( followed tutorial ) simple web service in android, using ksoap libary. seems doesn't work well. below simple code:

public class mainactivity extends activity {  textview tv; soapprimitive response;  final string soap_action = "http://tempuri.org/celsiustofahrenheit"; final string method_name = "celsiustofahrenheit"; final string namespace = "http://www.tempuri.org/"; final string url = "http://www.w3schools.com/webservices/tempconvert.asmx"; @override protected void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);     setcontentview(r.layout.activity_main);      tv = (textview) findviewbyid(r.id.tv);     final button button = (button) findviewbyid(r.id.button1);     button.setonclicklistener(new view.onclicklistener() {          @override          public void onclick(view v) {             getvalue();          }     });  }  private void getvalue() {      soapobject soapobject = new soapobject(namespace, method_name);     soapobject.addproperty("celsius", "33");       soapserializationenvelope serial = new soapserializationenvelope(soapenvelope.ver11);     serial.dotnet = true;     serial.setoutputsoapobject(soapobject);      httptransportse transport = new httptransportse(url);      try {         transport.call(soap_action, serial);         response = (soapprimitive) serial.getresponse();         tv.settext(response+"");     } catch (ioexception e) {         e.printstacktrace();     } catch (xmlpullparserexception e) {         e.printstacktrace();     }  } } 

i response "error" in text view. can tell me wrong here?

i found wrong. wrote:

final string namespace = "http://www.tempuri.org/"; 

instead of

final string namespace = "http://tempuri.org/"; 

it's working now.