Error in Body Tracking sdk 4.0

Hi all,
I am trying to use SDK 4.0 for Body tracking
I keep getting an error related to retrieveObjects method. I have made some editing to the example files.
mainly changing methods that have Object to ones that use Body

I tried changing one specific method in the Camera.hpp file from what it was to the new
I keep getting this err:

ERROR_CODE retrieveObjects(Bodies &objects, BodyTrackingRuntimeParameters parameters = BodyTrackingRuntimeParameters(), unsigned int instance_id = 0);

Can you help with this?

This post is a duplicate from : Problems in using Body tracking in SDK 4.0.

I’m closing it