[ns] Error messages while running wireless1.tcl example

[scao@lerc.nasa.gov]

Hi,

I get some errors while running "wireless1.tcl"  example as :

Loading connection pattern...
couldn't read file "../mobility/scene/cbr-3-test": no such file or directory
     while executing
"source.orig ../mobility/scene/cbr-3-test"
     ("uplevel" body line 1)
     invoked from within
"uplevel source.orig $fileName"
     (procedure "source" line 12)
     invoked from within
"source $val(cp)"
     (file "wireless1.tcl" line 121)

Please help!

Thanks,

Son Cao