java - Error while following osmbonuspack "Hello, Routing World!" tutorial -

i have created simple project using osm.the map showing current location. want create navigation current location specific point on map.i trying follow this tutorial.

in polyline roadoverlay = roadmanager.buildroadoverlay(road, this); line,i getting error

type mismatch: cannot convert pathoverlay polyline 

i using following libraries in project:

1. osmdroid-android-4.1.jar 2. osmbonuspack_3.0.jar 3. slf4j-android-1.5.8.jar 

here mainactivity:

import java.util.arraylist;  import org.osmdroid.defaultresourceproxyimpl; import org.osmdroid.resourceproxy; import org.osmdroid.api.polyline; import org.osmdroid.bonuspack.routing.osrmroadmanager; import org.osmdroid.bonuspack.routing.road; import org.osmdroid.bonuspack.routing.roadmanager; import org.osmdroid.tileprovider.tilesource.tilesourcefactory; import org.osmdroid.util.geopoint; import org.osmdroid.views.mapview;  import android.app.activity; import android.graphics.drawable.drawable; import android.os.bundle; import android.view.menu;   public class mainactivity extends activity {      myitemizedoverlay myitemizedoverlay = null;      double latitude;     double longitude;      // mapview variable:     private mapview m_mapview;      geopoint startpoint;      @override     protected void oncreate(bundle savedinstancestate) {         super.oncreate(savedinstancestate);         setcontentview(r.layout.activity_main);            gpstracker tracker = new gpstracker(this);          if (tracker.cangetlocation() == false) {          tracker.showsettingsalert();          } else {          latitude = tracker.getlatitude();          longitude = tracker.getlongitude();          }             // find mapview controller in layout:         m_mapview = (mapview) findviewbyid(r.id.mapview);          //mapview mapview = new mapview(this, 256); //constructor         m_mapview.setclickable(true);         m_mapview.setbuiltinzoomcontrols(true);            //setcontentview(m_mapview); //displaying mapview            m_mapview.settilesource(tilesourcefactory.mapquestosm);            m_mapview.getcontroller().setzoom(15); //set initial zoom-level, depends on need            m_mapview.getcontroller().setcenter(new geopoint(latitude, longitude));            m_mapview.setusedataconnection(true);             m_mapview.setmultitouchcontrols(true);              drawable marker = getresources().getdrawable(r.drawable.pin_for_map);              int markerwidth = marker.getintrinsicwidth();              int markerheight = marker.getintrinsicheight();              marker.setbounds(0, markerheight, markerwidth, 0);               resourceproxy resourceproxy = new defaultresourceproxyimpl(              getapplicationcontext());               myitemizedoverlay = new myitemizedoverlay(marker, resourceproxy);              m_mapview.getoverlays().add(myitemizedoverlay);               geopoint mypoint1 = new geopoint(latitude, longitude);              myitemizedoverlay.additem(mypoint1, "mypoint1", "mypoint1");               startpoint = new geopoint(latitude, longitude);     }      //for routing     public void osmroute()     {         //road manager         roadmanager roadmanager = new osrmroadmanager();          //start , end points         arraylist<geopoint> waypoints = new arraylist<geopoint>();         waypoints.add(startpoint);         geopoint endpoint = new geopoint(48.4, -1.9);         waypoints.add(endpoint);          //etreive road between points         road road = roadmanager.getroad(waypoints);          //build polyline route shape         polyline roadoverlay = roadmanager.buildroadoverlay(road, this);     }        @override     public boolean oncreateoptionsmenu(menu menu) {         // inflate menu; adds items action bar if present.         getmenuinflater().inflate(r.menu.main, menu);         return true;     }  } 

here activity_main.xml:

<relativelayout xmlns:android="http://schemas.android.com/apk/res/android"     android:layout_width="match_parent"     android:layout_height="match_parent">          <org.osmdroid.views.mapview             android:id="@+id/mapview"             android:layout_width="match_parent"              android:layout_height="match_parent"             android:enabled="true"                   android:clickable="true"         />   </relativelayout> 

where going wrong? should complete tutorial?

in addition kurtzmarc comment, not using correct version of osmbonuspack:

if using osmdroid-android-4.1.jar, must use osmbonuspack v4.2.6 or above.

download latest version (v4.4), not outdated one.