[ns] problem with tcl?

["haruki" <haruki@katto.comm.waseda.ac.jp>]

Hi there.

I have a 2.1b7-current(21 June 2000) version.
I'm attempting to implement a new protocol using Mobile IP, and am getting
this error:

-----------------------------
ns: _o2921 runq 0.66666666666666663: expected ?inst/local? or ?inst? ?local?
but got  6     簷@
    (Object instvar line 1)
    invoked from within
"$self instvar $c"
    (procedure "_o827" line 3)
    (Link all-connectors line 3)
    invoked from within
"$self all-connectors reset"
    (procedure "_o827" line 8)
    (Link down line 8)
    invoked from within
"$links_($l) down"
    (procedure "_o2771" line 4)
    (rtModel down line 4)
    invoked from within
"_o2771 down"
    ("eval" body line 1)
    invoked from within
"eval $obj $iproc $args"
    (procedure "_o2921" line 8)
    (rtQueue runq line 8)
    invoked from within
"_o2921 runq 0.66666666666666663"
-------------------------------


I searched archive about this error but couldn't find any solutions.

Could you please give me the solution of this problem or info?
Thanks.

rgds,
Haruki