hello i am trying to run this line of code : ./waf --run “ns2-mobility-trace --traceFile=scratch/losangeles.tcl --nodeNum=2 --duration=100.0 --logFile=ns2-mobility-trace.log” but i am getting an error i will appreciate any help and thanks. Bouabid Marwan Mastère de recherche System d'information intelligent ISIGK. tel:+21655724177