[ns] problem in tcl script

sir, I am running below tcl script it gives the error: Flow 1 starts at time 0.00 --- Classfier::no-slot{} default handler (tcl/lib/ns-lib.tcl) --- _o12: no target for slot 4294967295 _o12 type: Classifier/Hash/Dest content dump: classifier _o12 0 offset

[ns] Problem running Tcl Script in NS-2.31

Hello, I have installed ns-allinone-2.31 under cygwin... i tried running tora.tcl... (using ns tora.tcl command). But i got the following message... Moreover .nam and .tr files formed are of 0 bytes... num_nodes is set 6 INITIALIZE THE LIST xListHead (_o22 cmd line 1) invoked from