Invalid value for Matrix property Error in plot_vehicle.m

[fb1812]

Hi, I am getting the following error when running plot_vehicle.m:

      Invalid value for Matrix property
      
      Error in plot_vehicle (line 135)
                  h.vehicle.Matrix = SE2(x(i,:)).SE3.T;  % convert (x,y,th) to SE(3)

Any suggest on why I get this error?
Thank you!