The point is, Cocos Creator 1.6 failed to integrate VS 2017 into its simulator. When I run simulator itself it askes for tons of missed dll from VS 2017. But VS 2017 is installed already, before I install Cocos Creator.
But the funny thing is, Cocos Creator still have a check box to let us tick & start install VS2017. When installing VS2017, I get a alert like “Can’t find component …abc.Cocos.xyz” then the part to install VS2017 ends there.