RSVP simulation in 2.1b6

[Ge Yu <engp9374@nus.edu.sg>]

hi, friends,

When I want to update RSVP code(2.1b5) to 2.1b6, I met with some problems, I
have changed the address-variables to confirm to b6, the "make" is
successful, but when I run rsvp_conf.tcl, the errors occur as follows:

_o3: unable to dispatch method get-nodetype
    while executing
"[Simulator instance] get-nodetype"
    (procedure "_o10" line 6)
    (Node init line 6)
    invoked from within
"_o10 init {}"
    (Class create line 1)
    invoked from within
"Node create _o10 {}"
    invoked from within
"catch "$className create $o $args" msg"
    (procedure "new" line 3)
    invoked from within
"new [Simulator set node_factory_] $args"
    (procedure "_o3" line 12)
    (Simulator node line 12)
    invoked from within
"$ns node"
    (file "rsvp_conf.tcl" line 34)
~

Does anybody know what's the matter?

Thank you for reading!

Ge Yu