[ns] node x is not defined.

[uknown noname]

hello..
i've made a bit changes in ..tcl/ex/wireless.tcl. when i run ns its look working fine and creating the output file. but when i run nam, there is no simulation, and at the terminal,shows:

node 4 is not defined... node 4 is not defined... node 6 is not defined... node 7 is not defined... node 7 is not defined... node 8 is not defined... node 5 is not defined... node 5 is not defined... node 6 is not defined...

I already creating scenario files for mobility simulations using setdest and declare it at Default Script Options - (set opt(sc)). 

Does anybody has idea what are the error is?


My system :
FC 6
2.6.18-1.2869.fc6
ns2.30
       
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