H5+ 地图插件路径检索闪退 请问是什么情况?

代码如下
var selfPoint = new plus.maps.Point(104.00423,30.654535);
var toPoint = new plus.maps.Point(104.01504, 30.661414);
var searchObj = new plus.maps.Search(map);
searchObj.onRouteSearchComplete = function(state, result) {
alert(state);
}
searchObj.drivingSearch(selfPoint, "", toPoint, "");