title: App is crashing when I try to call web service connection method
body: <p>Hey I've got this problem:
  In my Android App there's a method that calls a web service using KSOAP. Unfortunately everytime I try to execute this specific method, the whole app crashes. That happens on the virtual as well as the real device.</p>
  
  <p>I've tried to use this tutorial: <a href="http://sarangasl.blogspot.de/2011/10/android-web-service-access-tutorial.html" rel="nofollow">http://sarangasl.blogspot.de/2011/10/android-web-service-access-tutorial.html</a></p>
  
  <p>The needed files are imported, KSOAP is added, Eclipse isn't displaying any errors, internet usage is added to Manifest file. The method is called within the XML layout file of a fragment using android:onClick="TestyTest"</p>
  
  <p>I actually have no clue why the app crashes.</p>
  
  <pre><code>private final String NAMESPACE = "http://www.webserviceX.NET/";
      private final String URL = "http://www.webservicex.net/ConvertWeight.asmx";
      private final String SOAP_ACTION = "http://www.webserviceX.NET/ConvertWeight";
      private final String METHOD_NAME = "ConvertWeight";
  
      public void TestyTest(View view)
      {
          TextView text1 = (TextView) findViewById(R.id.update_text);
  
          SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME); 
  
          String weight = "3700";
          String fromUnit = "Grams";
          String toUnit = "Kilograms";
  
          PropertyInfo weightProp =new PropertyInfo();
          weightProp.setName("Weight");
          weightProp.setValue(weight);
          weightProp.setType(double.class);
          request.addProperty(weightProp);
  
          PropertyInfo fromProp =new PropertyInfo();
          fromProp.setName("FromUnit");
          fromProp.setValue(fromUnit);
          fromProp.setType(String.class);
          request.addProperty(fromProp);
  
          PropertyInfo toProp =new PropertyInfo();
          toProp.setName("ToUnit");
          toProp.setValue(toUnit);
          toProp.setType(String.class);
          request.addProperty(toProp);
  
          SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
          envelope.dotNet = true;
          envelope.setOutputSoapObject(request);
          HttpTransportSE androidHttpTransport = new HttpTransportSE(URL);
  
          try {
              androidHttpTransport.call(SOAP_ACTION, envelope);
              SoapPrimitive response = (SoapPrimitive)envelope.getResponse();
              Log.i("myApp", response.toString());
  
  
              text1.setText(weight+" "+fromUnit+" equal "+response.toString()+ " "+toUnit);
  //            setContentView(tv);
  
          } catch (Exception e) {
              e.printStackTrace();
          }
  
      }
  </code></pre>
  
  <p>In case this helps here the logcat file:</p>
  
  <pre><code>02-20 10:58:06.430: E/dalvikvm(3599): Could not find class 'org.ksoap2.serialization.SoapObject', referenced from method com.test.testy.MainActivity.TestyTest
  02-20 10:58:06.430: W/dalvikvm(3599): VFY: unable to resolve new-instance 562 (Lorg/ksoap2/serialization/SoapObject;) in Lcom/test/testy/MainActivity;
  02-20 10:58:06.430: D/dalvikvm(3599): VFY: replacing opcode 0x22 at 0x0009
  02-20 10:58:06.440: D/dalvikvm(3599): DexOpt: unable to opt direct call 0x0dc6 at 0x0f in Lcom/test/testy/MainActivity;.TestyTest
  02-20 10:58:06.440: D/dalvikvm(3599): DexOpt: unable to opt direct call 0x0dc2 at 0x1a in Lcom/test/testy/MainActivity;.TestyTest
  02-20 10:58:06.440: D/dalvikvm(3599): DexOpt: unable to opt direct call 0x0dc2 at 0x2f in Lcom/test/testy/MainActivity;.TestyTest
  02-20 10:58:06.440: D/dalvikvm(3599): DexOpt: unable to opt direct call 0x0dc2 at 0x44 in Lcom/test/testy/MainActivity;.TestyTest
  02-20 10:58:06.440: D/dalvikvm(3599): DexOpt: unable to opt direct call 0x0dc9 at 0x5b in Lcom/test/testy/MainActivity;.TestyTest
  02-20 10:58:06.440: I/dalvikvm(3599): DexOpt: unable to optimize instance field ref 0x0384 at 0x5f in Lcom/test/testy/MainActivity;.TestyTest
  02-20 10:58:06.440: D/dalvikvm(3599): DexOpt: unable to opt direct call 0x0dcc at 0x68 in Lcom/test/testy/MainActivity;.TestyTest
  02-20 10:58:06.560: D/libEGL(3599): loaded /system/lib/egl/libEGL_tegra.so
  02-20 10:58:06.600: D/libEGL(3599): loaded /system/lib/egl/libGLESv1_CM_tegra.so
  02-20 10:58:06.610: D/libEGL(3599): loaded /system/lib/egl/libGLESv2_tegra.so
  02-20 10:58:06.640: D/OpenGLRenderer(3599): Enabling debug mode 0
  02-20 10:58:06.860: E/SpannableStringBuilder(3599): SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length
  02-20 10:58:06.860: E/SpannableStringBuilder(3599): SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length
  02-20 10:58:06.880: E/SpannableStringBuilder(3599): SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length
  02-20 10:58:06.880: E/SpannableStringBuilder(3599): SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length
  02-20 10:58:06.910: D/dalvikvm(3599): GC_CONCURRENT freed 154K, 5% free 7631K/7972K, paused 2ms+11ms, total 34ms
  02-20 10:58:15.530: D/AndroidRuntime(3599): Shutting down VM
  02-20 10:58:15.530: W/dalvikvm(3599): threadid=1: thread exiting with uncaught exception (group=0x41274930)
  02-20 10:58:15.540: E/AndroidRuntime(3599): FATAL EXCEPTION: main
  02-20 10:58:15.540: E/AndroidRuntime(3599): java.lang.IllegalStateException: Could not execute method of the activity
  02-20 10:58:15.540: E/AndroidRuntime(3599):     at android.view.View$1.onClick(View.java:3597)
  02-20 10:58:15.540: E/AndroidRuntime(3599):     at android.view.View.performClick(View.java:4202)
  02-20 10:58:15.540: E/AndroidRuntime(3599):     at android.view.View$PerformClick.run(View.java:17340)
  02-20 10:58:15.540: E/AndroidRuntime(3599):     at android.os.Handler.handleCallback(Handler.java:725)
  02-20 10:58:15.540: E/AndroidRuntime(3599):     at android.os.Handler.dispatchMessage(Handler.java:92)
  02-20 10:58:15.540: E/AndroidRuntime(3599):     at android.os.Looper.loop(Looper.java:137)
  02-20 10:58:15.540: E/AndroidRuntime(3599):     at android.app.ActivityThread.main(ActivityThread.java:5039)
  02-20 10:58:15.540: E/AndroidRuntime(3599):     at java.lang.reflect.Method.invokeNative(Native Method)
  02-20 10:58:15.540: E/AndroidRuntime(3599):     at java.lang.reflect.Method.invoke(Method.java:511)
  02-20 10:58:15.540: E/AndroidRuntime(3599):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
  02-20 10:58:15.540: E/AndroidRuntime(3599):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
  02-20 10:58:15.540: E/AndroidRuntime(3599):     at dalvik.system.NativeStart.main(Native Method)
  02-20 10:58:15.540: E/AndroidRuntime(3599): Caused by: java.lang.reflect.InvocationTargetException
  02-20 10:58:15.540: E/AndroidRuntime(3599):     at java.lang.reflect.Method.invokeNative(Native Method)
  02-20 10:58:15.540: E/AndroidRuntime(3599):     at java.lang.reflect.Method.invoke(Method.java:511)
  02-20 10:58:15.540: E/AndroidRuntime(3599):     at android.view.View$1.onClick(View.java:3592)
  02-20 10:58:15.540: E/AndroidRuntime(3599):     ... 11 more
  02-20 10:58:15.540: E/AndroidRuntime(3599): Caused by: java.lang.NoClassDefFoundError: org.ksoap2.serialization.SoapObject
  02-20 10:58:15.540: E/AndroidRuntime(3599):     at com.test.testy.MainActivity.TestyTest(MainActivity.java:269)
  02-20 10:58:15.540: E/AndroidRuntime(3599):     ... 14 more
  </code></pre>