[ns] nam error urgent help needed

*hi all, ** whenever i m running followin simple tcl file using ns-2.31 on Cygwin:-* #Create a simulator object set ns [new Simulator] #Open the nam trace file set nf [open out.nam w] $ns namtrace-all $nf #Define a 'finish' procedure proc finish {} { global ns nf $ns flush-trace

[ns] nam error urgent help needed

hi all, whenever i m running followin simple tcl file:- #Create a simulator object set ns [new Simulator] #Open the nam trace file set nf [open out.nam w] $ns namtrace-all $nf #Define a 'finish' procedure proc finish {} { global ns nf $ns flush-trace #Close the trace file