[LayaAirIDE 2.0]实例碰撞体报错，Cannot read property 'btSphereShape' of undefined

Uncaught TypeError: Cannot read property 'btSphereShape' of undefined
    at new SphereColliderShape (laya.d3.js:27198)
    at new GameUI (GameUI.js:30)
    at Function.ClassUtils.getInstance (laya.core.js:9634)
    at SceneLoader.create (laya.core.js:20746)
    at EventHandler.__proto.run (laya.core.js:1111)
    at SceneLoader.__proto.event (laya.core.js:882)
    at SceneLoader.__proto._checkNext (laya.core.js:15729)
    at SceneLoader.__proto.onOneLoadComplete (laya.core.js:15780)
    at EventHandler.__proto.runWith (laya.core.js:1125)
    at ResInfo.__proto.event (laya.core.js:882)