[Ipopt] Issue using Matlab interface

[Tony Kelman]

David,

Is your problem constrained? If so, you need to provide a Jacobian structure 
function in funcs.jacobianstructure. The error you're seeing indicates that 
function was unable to evaluate for some reason. See lines 245-246 of 
https://projects.coin-or.org/Ipopt/browser/trunk/Ipopt/contrib/MatlabInterface/src/callbackfunctions.cpp.

What happens in Matlab when you call funcs.jacobianstructure() ?

-Tony

-----Original Message----- 
From: David Bulant <bulandav at fjfi.cvut.cz>
Date: Mon, 5 Nov 2012 16:19:57 +0000
To: "ipopt at list.coin-or.org" <ipopt at list.coin-or.org>
Subject: [Ipopt] Issue using Matlab interface

Hi,

I successfully installed Ipopt with Matlab interface.  When I try to use 
ipopt in my code I have this exception:
Matlab exception:
std::exception
*** Error using Ipopt Matlab interface: ***
There was an error when getting the structure of the Jacobian matrix from 
MATLAB.

info = status: -101


Thanks for your help,
David