[ns] Error Message: warning: using backward compatibility mode error when calling class OldSim: example1b.tcl

[Brenda Lindsay Williams]

Hi there, I'm trying to run a tcl script called example1b.tcl, and everytime
I tr to un it I get the following error below.

mavor at Victor:~/Network-Simulator/ns-allinone-2.32-rc2/ns-2.32/tcl/ex> ns
% ns example1b.tcl
warning: using backward compatibility mode
error when calling class OldSim: example1b.tcl

Can someone pls help?
I've been googling for a solution for over one hour but no luck
Thanks.

regards,

Brenda