Eclipseを解決できません

私はサイトを検索しましたが、まだ私の質問に対する回答が見つかりませんでした。ここでmapaを解決できない理由を教えてください。ここでEclipseを解決できません

 mapa.setSatelite(true);

は全体のアクティビティコードです：

package rs.iz.stevy.wifi; 

    import android.graphics.drawable.Drawable; 
    import android.os.Bundle; 
    import android.view.Menu; 
    import android.view.MenuInflater; 
    import android.view.MenuItem; 


    public class WiFiKupacicaActivity extends MapActivity { 
    /** Called when the activity is first created. */ 
    @Override 
    public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.main); 
    MapView mapa= (MapView) findViewById(R.id.Mapa1); 
    mapa.setBuiltInZoomControls(true); 
    mapa.setSatellite(false); 

List<Overlay> mapOverlays = mapa.getOverlays(); 
Drawable drawable = this.getResources().getDrawable(R.drawable.green);//dodaj neki marker 
MapOverlay itemizedoverlay = new MapOverlay(drawable, this); 

GeoPoint point = new GeoPoint(42444210,19249269); 
OverlayItem overlayitem = new OverlayItem(point, "Krug", "ESSID:nije utvrdjeno Šifra:ima"); 

GeoPoint point2 = new GeoPoint(42441818,19263582); 
OverlayItem overlayitem2 = new OverlayItem(point2, "Carine 1", "ESSID:Carine Šifra:nema"); 

GeoPoint point3= new GeoPoint(42442169,19261555); 
OverlayItem overlayitem3 = new OverlayItem(point3, "Sejdefa", "ESSID:Sejdefa Šifra:ima"); 

GeoPoint point4= new GeoPoint(42440254,19250805); 
OverlayItem overlayitem4 = new OverlayItem(point4, "Unico", "ESSID:Unico Šifra:ima"); 

GeoPoint point5= new GeoPoint(42441559,19247810); 
OverlayItem overlayitem5 = new OverlayItem(point5,"Carine 2","ESSID:Carine Šfira:nema"); 

GeoPoint point6= new GeoPoint(42433342,19267099); 
OverlayItem overlayitem6 = new OverlayItem(point6,"Forma", "ESSID:Forma Šifra:ima"); 

GeoPoint point7= new GeoPoint(42443596,19247948); 
OverlayItem overlayitem7 = new OverlayItem(point7,"Maxim Caffe", "ESSID:nije utvrdjeno Šifra:ima"); 

GeoPoint point8= new GeoPoint(42449978,19259390); 
OverlayItem overlayitem8 = new OverlayItem(point8,"Me Gusta","ESSID:nije utvrdjeno Šifra:nema"); 

GeoPoint point9= new GeoPoint(42445312,19263691); 
OverlayItem overlayitem9 = new OverlayItem(point9,"Pub 013","ESSID:nije utvrdjeno Šifra:nema"); 

GeoPoint point10= new GeoPoint(42441254,19259972); 
OverlayItem overlayitem10 = new OverlayItem(point10,"Alan Ford","ESSID:nije utvrdjeno Šifra:ima"); 

GeoPoint point11= new GeoPoint(42446926,19263325); 
OverlayItem overlayitem11 = new OverlayItem(point11,"MNNews- Gimnazija","ESSID:nije utvrdjeno Šifra:nema/login preko web-a"); 

GeoPoint point12= new GeoPoint(42441257,19262810); 
OverlayItem overlayitem12 = new OverlayItem(point12,"MNNews- Trg Republike","ESSID:nije utvrdjeno Šifra:nema/login preko web-a"); 

GeoPoint point13= new GeoPoint(42442612,19262810); 
OverlayItem overlayitem13 = new OverlayItem(point13,"MNNews- Rimski trg","ESSID:nije utvrdjeno Šifra:nema/login preko web-a"); 



itemizedoverlay.addOverlay(overlayitem); 
itemizedoverlay.addOverlay(overlayitem2); 
itemizedoverlay.addOverlay(overlayitem3); 
itemizedoverlay.addOverlay(overlayitem4); 
itemizedoverlay.addOverlay(overlayitem5); 
itemizedoverlay.addOverlay(overlayitem6); 
itemizedoverlay.addOverlay(overlayitem7); 
itemizedoverlay.addOverlay(overlayitem8); 
itemizedoverlay.addOverlay(overlayitem9); 
itemizedoverlay.addOverlay(overlayitem10); 
itemizedoverlay.addOverlay(overlayitem11); 
itemizedoverlay.addOverlay(overlayitem12); 
itemizedoverlay.addOverlay(overlayitem13); 

mapOverlays.add(itemizedoverlay); 

} 

@Override 
protected boolean isRouteDisplayed() { 
    // TODO Auto-generated method stub 
    return false; 
} 



public boolean OnCreateOptionsMenu(Menu menu){ 
    MenuInflater inflater= getMenuInflater(); 
    inflater.inflate(R.layout.menu, menu); 
    return true; 
} 


@Override 
public boolean onOptionsItemSelected(MenuItem item) { 
    // Handle item selection 
    switch (item.getItemId()) { 
    case R.id.prva: 
     mapa.setSatelite(true); 
     return true; 
    case R.id.druga: 
     // 
     return true; 
    default: 
     return super.onOptionsItemSelected(item); 
    } 

} 
}

出典

2012-01-04 stevyhacker