[ns] Error after loading mobility scenario file

Hello everyone! I am getting following error on terminal after loading scenario file; can't read node_(0): no such variable     while executing $node_(0) set X_ 220.862351576651     (file puneet line 4)     invoked from within source.orig puneet     (uplevel body line 1)     invoked from within

[ns] error after loading mobility scenario file

Hi sir/madam I carry out few changes in tcl for node definition god definition sorted out the problem. Thanks alot.