[Couenne] Unknown operator error

[Novalio Daratha]

Dear All,

I am interested in trying couenne. Bonmin can handel my AMPL model now.
When I try couenne, I got the following error message:

ampl: solve;
Couenne 0.4.2 --  an Open-Source solver for Mixed Integer Nonlinear
Optimization
Mailing list: couenne at list.coin-or.org
Instructions: http://www.coin-or.org/Couenne
couenne:
ANALYSIS TEST: ERROR: unknown operator (address 0pa24830), aborting.
exit code 4294967295
<BREAK>
ampl:

Would anybody kindly give me some advice on how to proceed further?

Sincerely yours,

Novalio Daratha
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://list.coin-or.org/pipermail/couenne/attachments/20120824/f5f67302/attachment.html>