我用这个密码

final JXMapKit jXMapKit1 = new JXMapKit();
        jXMapKit1.setDefaultProvider(DefaultProviders.OpenStreetMaps);
        jXMapKit1.setCenterPosition(new GeoPosition(45.41984, -3.33924));
        jXMapKit1.setZoom(3);

        final List<GeoPosition> region = new ArrayList<GeoPosition>();
        region.add(new GeoPosition(5.42031, 100.34389));
        region.add(new GeoPosition(5.41984, 100.33924));
        region.add(new GeoPosition(5.42300, 100.33456));
        TileFactoryInfo info = new TileFactoryInfo(
        0, //min level
        8, //max allowed level
        10, // max level
        256, //tile size
        true, true, // x/y orientation is normal
        "file://D:/Tiles", // base url
        "x","y","z" // url args for x, y &amp; z
        ) {
    public String getTileUrl(int x, int y, int zoom) {
        return this.baseURL +"/"+zoom+"/"+x+"/"+y+".png";
    }
};
        jXMapKit1.setTileFactory(new DefaultTileFactory(info));

我的瓷砖是用maperitive创建的。但是当我运行appli时，我有一个错误
2013年6月6日上午8:10:05 org.jdesktop.swingx.mapviewer.defaulttilefactory$tilerunner run severe:未能在url加载磁贴：file://d：/tiles/1/255/256.png，重试java.net.unknownhostexception:d
我不明白为什么我有“d:/tiles/1/255/256.png”