Wiki Sumber Informasi iSIKHNAS

• Save this new layer (the same way you did before) under exercise_data/residential_development/, as important_roads.shp.
• Once the new layer has been added to your map, remove the old layer.
• If for some reason it gives you an error message saying that it can't add the layer to the map (this can happen), remember that you can add the layer yourself by using the Add Vector Layer button as you did before.