setting cameraEngine.rotationCamera = true give you an error about cameraengine HOT 2 OPEN

I set cameraEngine.rotationCamera = true in viewDidAppear() just like in an example

My problem is I want a view that has camera preview layer to be rotatable by device orientation but by declare let cameraEngine = CameraEngine() , it blocks view from rotating. it's freeze orientation to the one that view has when it first appear and declare CameraEngine(). and it also stop the whole application from rotating.
it stop rotating from portrait to landscape and landscape to portait.
I guess by changing this value. it would solve my issue. but I also got an error just like I mentioned above.

from cameraengine.

by the way I use cameraEngine like this

nav controller -> view A -> view B (has, show camera) -> view C -> view D (has, show camera)

the problem occurs at view D

from cameraengine.