Using Eclipse with Xpress-MP

From: Fabio <>
Date: Thu 17 Feb 2005 03:10:19 PM GMT
Message-Id: <>
I'm trying to use eplex library with XPress-MP free student version as
external solver.

Any eplex sample I'm trying to use thrown this error, while executing
eplex_solver_setup: "Error in external function in

Setting the first licence row of eplex_lic_info.ecl to XPress-MP licence
file, nothing changed.

How can I make it work?

Here's a sample code I'm using.

:- lib(eplex_xpress).

:- eplex_instance(prob).

m(Cost, Vars):-

Vars = [A1],

prob: (Vars $:: 0.0..2.0),

prob: (eplex_solver_setup(min(A1))),

prob: (eplex_solve(Cost)),

(foreach(V, Vars) do

prob: eplex_var_get(V, typed_solution, V)


Thank you for help.


Fabio Fabbri,

University of Bologna (Italy).
Received on Thu Feb 17 17:10:38 2005

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