[ns] problem in configuration

[Rajiv Nakarmi]

i am trying to setup 802.11e in ns2.28 using cygwin. and i got following
error when running multi_udpflow.tcl file.


$ ./ns mac/802_11e/multi_udpflows.tcl
num_nodes is set 51

    (_o20 cmd line 1)
    invoked from within
"_o20 cmd add-interface _o13 _o16 LL Mac/802_11e Queue/DTail/PriQ 50
Phy/Wireles
sPhy Antenna/OmniAntenna _o14 {} {} {} _o28"
    invoked from within
"catch "$self cmd $args" ret"
    invoked from within
"if [catch "$self cmd $args" ret] {
set cls [$self info class]
global errorInfo
set savedInfo $errorInfo
error "error when calling class $cls: $args" $..."
    (procedure "_o20" line 2)
    (SplitObject unknown line 2)
    invoked from within
"$node add-interface $chan $propInstance_ $llType_ $macType_  $ifqType_
$ifqlen_
 $phyType_ $antType_ $topoInstance_  $inerrProc_ $outerrProc_ $FECProc_..."
    (procedure "_o3" line 69)
    (Simulator create-wireless-node line 69)
    invoked from within
"_o3 create-wireless-node 1.0.0"
    ("eval" body line 1)
    invoked from within
"eval $self create-wireless-node $args"
    (procedure "_o3" line 14)
    (Simulator node line 14)
    invoked from within
"$ns node 1.0.0"
    invoked from within
"set BS(0) [$ns node 1.0.0]"
    (file "mac/802_11e/multi_udpflows.tcl" line 92)


Thanks your time