This error pops up if you are using GAMS scaling (
.scale) in connection with DICOPT and CPLEX as sub solver for MIP problems. The complete error message is:
... ILOG CPLEX May 1, 2008 22.7.1 WIN 3927.4700 VIS x86/MS Windows Cplex 11.0.1, GAMS Link 34 Reading data... Bad rowindex in readat(). --- DICOPT: MIP solver did not write a solution file DICOPT terminated prematurely because of a solver failure. The listing file will contain additional logs from the NLP and MIP solvers which may reveal what was the cause of the failure. --- DICOPT: No solution file: cannot continue --- DICOPT: Aborting --- Restarting execution
Only the distributions 22.6 and 22.7.1 are affected by this bug. If your system is still under under maintenance, please download the current GAMS version from our download server.
A work around is to edit some files in your GAMS system directory: