Question about add member function in ns

[richard <M8702028@mail.ntust.edu.tw>]

Hi:
The question is that I add a new  member function of class Simulator to
ns-lib.tcl like

Simulator instproc xxx {} {
        :
        :
}

After this step,I create a test Tcl script with this member function
and run it.But it does not work and show me  message like " _o3: unable
to dispatch method xxx while excuting".

Please tell me whether I take a wrong steps. And what should be
modified.

Thanks a lot.



        Richard Liu