Bing映射库“无法设置属性'isLoaded'未定义”错误

Question

我正在使用升级的v8 Bing地图库。我在地图上放置了分组标记。一切都显示正常但仍然在控制台日志中出现以下错误。

无法设置未定义属性'isLoaded'

此错误指向此特定代码行。

 n.moduleLoaded = function(t) {
            var i, r, u;
            if (t) {
                for (i = n._supportedModules[t],
                i.isLoaded = !0, //this particular line triggers error
                r = 0,
                u = i.pendingCallbacks.length; r < u; r++)
                    i.pendingCallbacks[r]();
                i.pendingCallbacks = []
            }
        }

以下是supportedModule的定义方式：

n._supportedModules = {
            "Microsoft.Maps.DrawingTools": {
                dragonflyObjectName: "DrawingToolsModule",
                isLoaded: !1,
                pendingCallbacks: []
            },
            "Microsoft.Maps.WellKnownText": {
                dragonflyObjectName: "WellKnownText",
                isLoaded: !1,
                pendingCallbacks: []
            },
            "Microsoft.Maps.GeoJson": {
                dragonflyObjectName: "GeoJson",
                isLoaded: !1,
                pendingCallbacks: []
            },
            "Microsoft.Maps.SpatialDataService": {
                dragonflyObjectName: "GeoDataAPIManager",
                isLoaded: !1,
                pendingCallbacks: []
            },
            "Microsoft.Maps.AutoSuggest": {
                dragonflyObjectName: "AutosuggestManager",
                isLoaded: !1,
                pendingCallbacks: []
            },
            "Microsoft.Maps.HeatMap": {
                dragonflyObjectName: "HeatMapLayer",
                isLoaded: !1,
                pendingCallbacks: []
            },
            "Microsoft.Maps.Clustering": {
                dragonflyObjectName: "ClusterLayer",
                isLoaded: !1,
                pendingCallbacks: []
            },
            "Microsoft.Maps.SpatialMath": {
                dragonflyObjectName: "SpatialMath",
                isLoaded: !1,
                pendingCallbacks: []
            },
            "Microsoft.Maps.Search": {
                dragonflyObjectName: "SearchManager",
                isLoaded: !1,
                pendingCallbacks: []
            },
            "Microsoft.Maps.Traffic": {
                dragonflyObjectName: "TrafficManager",
                isLoaded: !1,
                pendingCallbacks: []
            },
            "Microsoft.Maps.AdvancedShapes": {
                dragonflyObjectName: "",
                isLoaded: !0,
                pendingCallbacks: []
            },
            "Microsoft.Maps.Directions": {
                dragonflyObjectName: "DirectionsManager",
                isLoaded: !1,
                pendingCallbacks: []
            },
            "Microsoft.Maps.DataBinning": {
                dragonflyObjectName: "DataBinningLayer",
                isLoaded: !1,
                pendingCallbacks: []
            },
            "Microsoft.Maps.Contour": {
                dragonflyObjectName: "ContourLayer",
                isLoaded: !1,
                pendingCallbacks: []
            },
            "Microsoft.Maps.VenueMaps": {
                dragonflyObjectName: "VenueMap",
                isLoaded: !1,
                pendingCallbacks: []
            }
        },