title: java.io.IOException: HTTP request failed, HTTP status: 500 in android using WCF for android
body: <p>I have been trying to get data response from wcf dot net webservices but could not get properly response. From 2 days, gettting this error during connect webservices.</p>
  
  <p><strong>I also check <em>SoapEnvelope.VER11</em> but could not get data.</strong></p>
  
  <pre><code>public class MainActivity extends Activity {
  
  private static final String METHOD_NAME = "SayHello";
  
  private static final String NAMESPACE = "http://tempuri.org/IWFPService/";
  private static final String URL = "http://*****.svc";
  
  private static final String SOAP_ACTION = NAMESPACE+METHOD_NAME;
  private TextView textView;
  
  @Override
  protected void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.activity_main);
      textView = (TextView) findViewById(R.id.test);
      AsyncTaskRunner runner = new AsyncTaskRunner();
      runner.execute();
  }
  
  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
      // Inflate the menu; this adds items to the action bar if it is present.
      getMenuInflater().inflate(R.menu.activity_main, menu);
      return true;
  }
  private class AsyncTaskRunner extends AsyncTask&lt;String, String, String&gt; {
  
      private String resp;
      @Override
      protected String doInBackground(String... params) {
          publishProgress("Loading contents..."); // Calls onProgressUpdate()
          try {
              // SoapEnvelop.VER11 is SOAP Version 1.1 constant
              SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(
                      SoapEnvelope.VER12);
              SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME);
              //request.addProperty("TestNumber", 12);
              //bodyOut is the body object to be sent out with this envelope
              envelope.bodyOut = request;
              envelope.dotNet = true;
              Log.e(SOAP_ACTION, "--&gt;URL&gt;"+URL);
              Log.e(SOAP_ACTION, "--&gt;METHOD_NAME&gt;"+METHOD_NAME);
              Log.e(SOAP_ACTION, "--&gt;SOAP_ACTION&gt;"+SOAP_ACTION);
              Log.e(SOAP_ACTION, "--&gt;envelope&gt;"+envelope);
               Log.v("", "=========== Request : " + request);
              HttpTransportSE transport = new HttpTransportSE(URL);
              try {
                  transport.call(SOAP_ACTION, envelope);
              } catch (IOException e) {
                  e.printStackTrace();
              } catch (XmlPullParserException e) {
                  e.printStackTrace();
              }
              //bodyIn is the body object received with this envelope
              if (envelope.bodyIn != null) {
                  //getProperty() Returns a specific property at a certain index.
                  SoapPrimitive resultSOAP = (SoapPrimitive) ((SoapObject) envelope.bodyIn)
                          .getProperty(0);
                  resp=resultSOAP.toString();
                  Log.e(SOAP_ACTION, "--&gt;&gt;"+resp);
              }
              Log.e(SOAP_ACTION, "&lt;&lt;&lt;--&gt;&gt;"+resp);
          } catch (Exception e) {
              e.printStackTrace();
              resp = e.getMessage();
          }
          return resp;
      }
  
      /**
       * 
       * @see android.os.AsyncTask#onPostExecute(java.lang.Object)
       */
      @Override
      protected void onPostExecute(String result) {
          // execution of result of Long time consuming operation
          // In this example it is the return value from the web service
          textView.setText(resp);
      }
  
      /**
       * 
       * @see android.os.AsyncTask#onPreExecute()
       */
      @Override
      protected void onPreExecute() {
          // Things to be done before execution of long running operation. For
          // example showing ProgessDialog
      }
  
      /**
       * 
       * @see android.os.AsyncTask#onProgressUpdate(Progress[])
       */
      @Override
      protected void onProgressUpdate(String... text) {
          textView.setText(text[0]);
          // Things to be done while execution of long running operation is in
          // progress. For example updating ProgessDialog
      }
  }
  </code></pre>
  
  <p>}</p>
  
  <p>I have logcat in green color:</p>
  
  <pre><code>04-16 12:10:41.363: E/http://tempuri.org/IWFPService/SayHello(22684): --&gt;URL&gt;http://192.168.169.133/WFPeWin2/content/WFPService.svc
  04-16 12:10:41.363: E/http://tempuri.org/IWFPService/SayHello(22684): --&gt;METHOD_NAME&gt;SayHello
  04-16 12:10:41.363: E/http://tempuri.org/IWFPService/SayHello(22684): --&gt;SOAP_ACTION&gt;http://tempuri.org/IWFPService/SayHello
  04-16 12:10:41.363: E/http://tempuri.org/IWFPService/SayHello(22684): --&gt;envelope&gt;org.ksoap2.serialization.SoapSerializationEnvelope@4212da18
  04-16 12:10:41.363: V/(22684): =========== Request : SayHello{}
  04-16 12:10:41.598: W/System.err(22684): java.io.IOException: HTTP request failed, HTTP status: 500
  04-16 12:10:41.598: W/System.err(22684):    at org.ksoap2.transport.HttpTransportSE.call(HttpTransportSE.java:195)
  04-16 12:10:41.598: W/System.err(22684):    at org.ksoap2.transport.HttpTransportSE.call(HttpTransportSE.java:116)
  04-16 12:10:41.598: W/System.err(22684):    at org.ksoap2.transport.HttpTransportSE.call(HttpTransportSE.java:111)
  04-16 12:10:41.598: W/System.err(22684):    at com.example.samplews.MainActivity$AsyncTaskRunner.doInBackground(MainActivity.java:67)
  04-16 12:10:41.598: W/System.err(22684):    at com.example.samplews.MainActivity$AsyncTaskRunner.doInBackground(MainActivity.java:1)
  04-16 12:10:41.598: W/System.err(22684):    at android.os.AsyncTask$2.call(AsyncTask.java:287)
  04-16 12:10:41.598: W/System.err(22684):    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305)
  04-16 12:10:41.598: W/System.err(22684):    at java.util.concurrent.FutureTask.run(FutureTask.java:137)
  04-16 12:10:41.598: W/System.err(22684):    at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:230)
  04-16 12:10:41.598: W/System.err(22684):    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1076)
  04-16 12:10:41.598: W/System.err(22684):    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:569)
  04-16 12:10:41.598: W/System.err(22684):    at java.lang.Thread.run(Thread.java:856)
  04-16 12:10:41.598: E/http://tempuri.org/IWFPService/SayHello(22684): &lt;&lt;&lt;--&gt;&gt;null
  </code></pre>
  
  <p>What is wrong with my code, any idea??</p>