Where is LiveChildOrSelf

I want to use LiveChildOrSelf from the interface ICinemachineCamera like seen here: Interface ICinemachineCamera | Package Manager UI website

How ever when I go for the following line : Camera.main.GetComponent<Cinemachine.CinemachineBrain>().ActiveVirtualCamera.IsLiveChild is not found. I’m on cinemachine 2.2.8 and unity 2018.3.4f1

Can you post the code in question?

I cant. It seems the property LiveChildOrSelf does not exist in ICinemachineCamera.

Right. You are looking at old documentation. This is more recent: Interface ICinemachineCamera | Package Manager UI website