[]请问LayaAirUnityPlugin 1.1.0.unitypackage导出的.lsani文件怎么使用？

用目前最新的导出工具导出的动画，运行时报如下错误：


运行环境为:
windows7 64位
layabox 1.7.5
chrome 59.0.3071.86
附上unitypackage资源
以下为加载代码，请问这样使用是否正确：
    class ShuiPao extends Sprite3D {
        constructor() {
            super();
            let mesh = Sprite3D.load('resources/shuipao.lh');
            this.addChild(mesh);
            mesh.on(Event.HIERARCHY_LOADED, this, this.OnHierarchyLoaded);
            
            let ani_names = this.ani_names;
            let anies = this.anies;
            for (let name in ani_names) {
                anies[name] = AnimationTemplet.load(ani_names[name]);
            }
        }
        private ani_names = {
                idle: 'resources/Assets/ArtResources/Models/Shuipao/Animation/WaterCannon_idle-Idle.lsani',
                attack: 'resources/Assets/ArtResources/Models/Shuipao/Animation/WaterCannon_attack-Attack.lsani',
        };
        private anies  : {[name:string]:AnimationTemplet} = {};
        private meshes : Array<MeshSprite3D> = [];

        private OnHierarchyLoaded() {
            for (let v of this._childs[0]._childs) {
                let mesh = v as MeshSprite3D;
                mesh.addComponent(SkinAnimations);
                this.meshes.push(mesh);
            }
            this.switchAnimation('idle');
        }
        private switchAnimation(name:string) {
            console.log('switchAnimation: ' + this.meshes.length);
            let anitemplet = this.anies[name];
            for (let mesh of this.meshes) {
                let ani = mesh.getComponentByType(SkinAnimations, 0) as SkinAnimations;
                ani.templet = anitemplet;
                ani.player.play();
            }
        }
    }