[]添加fairygui使用fairygui.UIPackage.addPackage ( "res/Bag" )后可以正常跑，发布到微信小游戏出错

private function beginLoad():void {
            //加载引擎需要的资源
            //Laya.loader.load("res/atlas/comp.atlas", Handler.create(this, onLoaded)); 
            Laya.loader.load
            (
                [
                    { url: "res/atlas/comp.atlas" , type: Loader.ATLAS },
                    { url: "res/Bag@atlas0.png", type: Loader.IMAGE },
                    { url: "res/Bag.fui", type: Loader.BUFFER }
                ],
                Handler.create(this, onLoaded)
            );
        }
        
        private function onLoaded():void {
            //实例UI界面
            var testView:TestView = new TestView();
            Laya.stage.addChild(testView); 
            fairygui.UIPackage.addPackage ( "res/Bag" );
            Laya.stage.addChild ( fairygui.GRoot.inst.displayObject );
            fairygui.GRoot.inst.addChild ( fairygui.UIPackage.createObject( "Bag", "Main" ) );
        }