专业版下，场景添加了spine骨骼动画，运行报错

github上下了最新的demo，往里面添加了一个spine骨骼动画，可以移动位置大小并设置播放哪个动画。
但是运行报错，是否需要去哪里下库文件？
Uncaught TypeError: Cannot set property '_underConstruct' of null
    at GComponent.constructFromResource2 (fairygui.js:2965)
    at GComponent.constructFromResource (fairygui.js:2872)
    at GComponent.constructFromResource2 (fairygui.js:2960)
    at GComponent.constructFromResource (fairygui.js:2872)
    at GComponent.constructFromResource2 (fairygui.js:2960)
    at GComponent.constructFromResource (fairygui.js:2872)
    at UIPackage.internalCreateObject (fairygui.js:14501)
    at UIPackage.createObject (fairygui.js:14492)
    at Function.UIPackage.createObject (fairygui.js:14230)
    at Jpfc.onLoad (eval at <anonymous> (__quick_compile__.js:230), <anonymous>:66:38)