title: Call webservice from Android using KSoap simply returning "error" string
body: <p>I'm trying to use ksoap to call a simple webservice.  I followed <a href="http://www.vimeo.com/9633556" rel="nofollow noreferrer">this video</a> to try to get started.  When I call "getResponse()" on the envelope I just get the string "Error".  There's no exceptions thrown or any other detail.  I've successfully connected to a simple webservice I just setup on my local machine.  Could this potentially be related to being behind a proxy server here at work?  My code is below:</p>
  
  <pre><code>String SOAP_ACTION="http://tempuri.org/CelsiusToFahrenheit";
  String METHOD_NAME = "CelsiusToFahrenheit";
  String NAMESPACE = "http://tempuri.org";
  String URL = "http://w3schools.com/webservices/tempconvert.asmx";
  
  SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME);
  PropertyInfo pi = new PropertyInfo();
  pi.setName("Celsius");
  pi.setValue("32");
  request.addProperty(pi);
  
  SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
  envelope.dotNet = true;
  envelope.setOutputSoapObject(request);
  
  HttpTransportSE aht = new HttpTransportSE(URL);
  
  try
  {
      aht.call(SOAP_ACTION, envelope);
      SoapPrimitive results = (SoapPrimitive)envelope.getResponse();
  }
  catch (Exception e)
  {
      e.printStackTrace();
  }
  </code></pre>