[Cbc] OpenSolver stopped working on Max OS/Excel 2016 (Matt Koizim)

[Andrew Mason]

Matt wrote:

I?d been happily and successfully using OpenSolver in Excel 2016 for Mac 
OS for about a week and a half. Now whenever I attempt to solve my model 
using the same method I had successfully done in the past, Excel stops 
responding and the model does not solve or report an infeasible 
solution. I attempted reinstalling the Mac OS package, but OpenSolver is 
still unresponsive whenever I attempt to solve my model (or view an 
error log, or change the engine). Any ideas?

This is a known problem that we have now noted on the 
http://opensolver.org download pages. (Sorry, it was buried in the 
comments before.) Specifically, the late 2018 release of Excel 16.16.7 
has broken OpenSolver; if any Mac users can help us debug this, please 
email us at help at opensolver.org <mailto:help at opensolver.org>.

Andrew
Team OpenSolver

-- 

Dr Andrew J Mason
Associate Professor
Dept of Engineering Science
University of Auckland
New Zealand
+64 9 923 7909
+64 9 3737599 x87909
www.des.auckland.ac.nz/Mason
a.mason at auckland.ac.nz

OpenSolver.org: Open-source LP/IP/non-linear optimizer for Excel
SolverStudio.org: Excel modelling using Python/PuLP, Julia/JuMP, Gurobi, AMPL, GAMS, GMPL, ...

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