Error in android studio when trying to lift service by BroadcastReceiver android 5.1 lollipop

I'm doing tests with different services and connections and in the logcat it shows me the following error:

  

Before Android 4.1, method int   android.support.v7.widget.DropDownListView.lookForSelectablePosition (int,   boolean) would have incorrectly overridden the package-private method   in android.widget.ListView

Why is this? Does anyone know?

Servicio :

public class MyIntentService extends Service {
WebSocketClient mWebSocketClient;
URI uri;

@Override
public void onCreate() {
    super.onCreate();
    try {
        uri = new URI("ws://websockethost:8080");
    } catch (URISyntaxException e) {
        e.printStackTrace();
    }

    mWebSocketClient = new WebSocketClient(uri) {
        @Override
        public void onOpen(ServerHandshake serverHandshake) {
            Log.i("Websocket", "Opened");
            mWebSocketClient.send("Hello from " + Build.MANUFACTURER + " " + Build.MODEL);
        }

        @Override
        public void onMessage(String s) {
            mWebSocketClient.onMessage(s);
            if(s.equals("s")){
                //notificacion.....
            }
        }

        @Override
        public void onClose(int i, String s, boolean b) {
            Log.i("Websocket", "Closed " + s);
        }

        @Override
        public void onError(Exception e) {
            Log.i("Websocket", "Error " + e.getMessage());

        }

    };
}

public int onStartCommand(Intent intent, int flags, int startId) {
    mWebSocketClient.connect();
    return START_STICKY;
}

@Nullable
@Override
public IBinder onBind(Intent intent) {
    return null;
}

public void onDestroy() {
    stopSelf();
    Intent intent = new Intent("com.example.myapplication.MyIntentService");
    intent.putExtra("yourvalue", "torestore");
    sendBroadcast(intent);
}

}