>> readCam('/usr/local/share/mrpt/config_files/rawlog-grabber/camera_opencv.ini')
Warning: The following error was caught while executing 'mrpt.mexgrabber' class destructor:
Undefined function 'mexgrabber_' for input arguments of type 'char'.

Error in mrpt.mexgrabber/delete (line 29)
            mexgrabber_('delete');

Error in mrpt.mexgrabber (line 18)
        function this = mexgrabber(inifile)

Error in readCam (line 18)
    Cam = mrpt.mexgrabber(inifile);
> In mrpt.mexgrabber (line 18)
  In readCam (line 18)