why mouse not in sys.capabilities ?

I’m working in windows, i can’t set mouse enabled, log says:

JS: sys.capabilities…{opengl
JS:…2d-x-2.1.4\cocos2d-x-2.1.4\projects\MyGame\proj.win32\Debug.win32\MyGameRes\src/scene/game/GameScene.js:36:TypeError: this.setMouseEnabled is not a function

what’s wrong?:frowning: