使用WebTiledLayer加载天地图，3.15以下的可以正常加载，3.15以上就报错

var tileInfo = new TileInfo({

    rows: 256,

    cols: 256,

    compressionQuality: 0,

    origin: {

        x: -180,

        y: 90

    },

    spatialReference: {

        wkid: 4326

    },

    lods: [

        {"level": 2, "resolution": 0.3515625, "scale": 147748796.52937502},

        {"level": 3, "resolution": 0.17578125, "scale": 73874398.264687508},

        {"level": 4, "resolution": 0.087890625, "scale": 36937199.132343754},

        {"level": 5, "resolution": 0.0439453125, "scale": 18468599.566171877},

        {"level": 6, "resolution": 0.02197265625, "scale": 9234299.7830859385},

        {"level": 7, "resolution": 0.010986328125, "scale": 4617149.8915429693},

        {"level": 8, "resolution": 0.0054931640625, "scale": 2308574.9457714846},

        {"level": 9, "resolution": 0.00274658203125, "scale": 1154287.4728857423},

        {"level": 10, "resolution": 0.001373291015625, "scale": 577143.73644287116},

        {"level": 11, "resolution": 0.0006866455078125, "scale": 288571.86822143558},

        {"level": 12, "resolution": 0.00034332275390625, "scale": 144285.93411071779},

        {"level": 13, "resolution": 0.000171661376953125, "scale": 72142.967055358895},

        {"level": 14, "resolution": 8.58306884765625e-005, "scale": 36071.483527679447},

        {"level": 15, "resolution": 4.291534423828125e-005, "scale": 18035.741763839724},

        {"level": 16, "resolution": 2.1457672119140625e-005, "scale": 9017.8708819198619},

        {"level": 17, "resolution": 1.0728836059570313e-005, "scale": 4508.9354409599309},

        {"level": 18, "resolution": 5.3644180297851563e-006, "scale": 2254.4677204799655}

    ]

}),

subDomains = ["t0", "t1", "t2", "t3", "t4", "t5", "t6", "t7"],

templateUrl = "http://${subDomain}.tianditu.com/DataServer?T=vec_c&X=${col}&Y=${row}&L=${level}",

tdt = new WebTiledLayer(templateUrl, {

    subDomains: subDomains,

    tileInfo: tileInfo

});