hello guys

can anyone help me out in this http://stackoverflow.com/q/43843202/7761990

also, the opencv_contrib tracking.hpp why is that all code commented ?? and if i am uncommenting it, i am getting hell a lot of errors in tracking.hpp ,, whether commenting as it is, is giving me error in my code that, Rect2d , selectROI is not declared in this scope.

please help

thanks all