[]运行总报TypeError: Object prototype may only be an Object or null: undefined

我的例子只是简单的几个类继承，总是报这个异常，找了很久不没找到原因，工程见附件
TypeError: Object prototype may only be an Object or null: undefined
at setPrototypeOf (<anonymous>)
at __extends (file:///C:/Users/Administrator/Documents/Game3/bin/js/UIModule.js:6:9)
at file:///C:/Users/Administrator/Documents/Game3/bin/js/LoadingModule.js:17:5
at file:///C:/Users/Administrator/Documents/Game3/bin/js/LoadingModule.js:22:2
TypeError: Object prototype may only be an Object or null: undefined
at setPrototypeOf (<anonymous>)