[ns] Errors in using NOAH Extensions

[hxy <b9973069@bupt.edu.cn>]

Hi:

     I downloaded and installed ns-allinone-2.1b7a. As the ns Extension
NOAH's webpage said, the extensions are included in ns-allinone-2.1b7a.
I ran the example tcl, but encountered following  errors:
               num_nodes is set 10
               invalid command name "Propagation/SimpleDistance"
               while executing
        "Propagation/SimpleDistance creat _o31"
                invoked from within
        "catch "$className create $o $args" msg"
                (procedure "new" line 3)
                invoked from within
        "new $propType_"
                 (procedure " _o3" line 24)
                 (Simulator node-config line 24)
                  invoked from within
        "$ns_ node-config  -mobileIP ON \
                                         -adhocRouting NOAH \
                                         -llType LL \
                                         -macType Mac/802_ 11 \
                          ..."
                    (file "simulation.tcl" line22)

     Is there anything wrong with my understanding or installing?

      I'll be very thankful for helps!

      Best
Regards!