HELP PLEASE!!!!! Simulation

["George Khoury (ERA)" <George.Khoury@era.ericsson.se>]

Hi ns-users  

I have programming a scenario in ns (using tcl) and when I try to compile it I get this massage!! I have been trying to figure out why I get this message but I didn't succeed. 

(_o356 cmd line 1)
    invoked from within
"$self cmd lookup $nodeid $destid"
    (procedure "_o356" line 18)
    (RouteLogic lookup line 18)
    invoked from within
"$r lookup $i $j"
    (procedure "_o3" line 28)
    (Simulator compute-flat-routes line 28)
    invoked from within
"$self compute-flat-routes"
    (procedure "_o3" line 6)
    (Simulator compute-routes line 6)
    invoked from within
"[Simulator instance] compute-routes"
    (procedure "Agent/rtProto/Static" line 3)
    (Agent/rtProto/Static init-all line 3)
    invoked from within
"Agent/rtProto/Static init-all"
    (procedure "_o356" line 8)
    (RouteLogic configure line 8)
    invoked from within
"$self get-routelogic"
    (procedure "_o3" line 5)
    (Simulator run line 5)
    invoked from within
"$ns run"
    (file "vd1.tcl" line 389)


Could anybody give me some ideas why I get the massage and how could I solve it.

Thanks in advance

Best Regards 

George