        m_map->updateSource("navSource", navSource);
        m_map->setLayoutProperty("navLayer", "visibility", "visible");
  
        updateETA();
      } else {
        qWarning() << "Got empty route response";
      }
 
</s> remove     map_instructions->showError("Map loading");
 </s> add     map_instructions->showError("Map Loading");
      got_route = true;
        m_map->updateSource("navSource", navSource);
        m_map->setLayoutProperty("navLayer", "visibility", "visible");
      got_route = true;
  
        updateETA();
      } else {
        qWarning() << "Got empty route response";
      }
keep add keep keep keep keep keep
 nav: show error when route request fails 
selfdrive/ui/qt/maps/map.cc