I have a problem while calling a webservice. I have a .NET web service on the server, and I am using KSOAP2 (ksoap2-j2se-full-2.1.2) in Android. While running the program I got an runtime exception like &quot;org.ksoap2.serialization.SoapPrimitive&quot;. What should I do?

Here is my code.

    package projects.ksoap2sample;

    import org.ksoap2.SoapEnvelope;
    import org.ksoap2.serialization.SoapObject;
    import org.ksoap2.serialization.SoapSerializationEnvelope;
    import org.ksoap2.transport.HttpTransportSE;

    import android.app.*;
    import android.os.*;
    import android.widget.TextView;

    public class ksoap2sample extends Activity {
        /** Called when the activity is first created. */
    	private static final String SOAP_ACTION = &quot;http://tempuri.org/HelloWorld&quot;;
    	private static final String METHOD_NAME = &quot;HelloWorld&quot;;
    	private static final String NAMESPACE = &quot;http://tempuri.org/&quot;;
    	private static final String URL = &quot;http://192.168.1.19/TestWeb/WebService.asmx&quot;;
    	TextView tv;
        @Override
        public void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.main);
            tv=(TextView)findViewById(R.id.text1);

            try {
                SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME);

                //request.addProperty(&quot;prop1&quot;, &quot;myprop&quot;);

                SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
                envelope.dotNet=true;
                envelope.setOutputSoapObject(request);

                HttpTransportSE androidHttpTransport = new HttpTransportSE(URL);

                androidHttpTransport.call(SOAP_ACTION, envelope);

                Object result = (Object)envelope.getResponse();

                String[] results = (String[])  result;
                tv.setText( &quot;&quot;+results[0]);
            }
            catch (Exception e) {
            	tv.setText(e.getMessage());
            }
        }
    }


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How to call a .NET Webservice from Android using KSOAP2?