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Rare occurrences of exception xpress.InterfaceError: Incorrect control name
We have an optimization job that ~2% of the time fails with xpress.InterfaceError: Incorrect control name when trying to set xp.controls.miprelstop. This is the first line of code in our solver funct...
I confirm that in this particular case a missing license will manifest as "incorrect control name". I have filed a bug report to get this fixed.
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How to resolve traceback: "xpress.InterfaceError: Incorrect control name; check name and license type"?
We are trying to access xpress in Python via Pyomo. We have no issues installing xpress and solving a simple model with the xpress interface. However, when we attempt to access xpress via pyomo we re...