leaflet中marker圖標找不到的錯誤

解決方法

import L from 'leaflet';
import icon from 'leaflet/dist/images/marker-icon.png';
import iconShadow from 'leaflet/dist/images/marker-shadow.png';

let DefaultIcon = L.icon({
          iconUrl: icon,
          shadowUrl: iconShadow
      });
L.Marker.prototype.options.icon = DefaultIcon;