[ns] prob in running aodv example

[Bringo Shawn]

Hello All.

When I run aodv.tcl in ns2.32 as :
#ns aodv.tcl

I get the following error:

invalid command name "Agent/rtProto/AODV"
    while executing
"Agent/rtProto/AODV instproc init args {
        $self next $args
}       "
    (file "aodv.tcl" line 19)

Please help me out.