OpenSolver 2.1 (6 Sept 2012)

By admin, on September 6th, 2012

OpenSolver 2.1 is now released, and has a number of fixes and improvements. These include a newer version of the optimiser CBC, a bug fix for handling multiple cell blocks as decision cells on non-English systems, more robust non-linearity checking, and the ability to turn off this non-linearity checking if you know your model is linear. We now also display ≥ instead of > in our on-sheet constraints. All feedback is welcome.

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4 comments to OpenSolver 2.1 (6 Sept 2012)

• Jayme

  December 15, 2012 at 12:58 pm · Reply

  Hello. I keep running into a bug with this version. Whenever I try to click on somethign in the main form, it goes into the debug mode to procedure OpenSolver_ModelClick”, line 19800.
  The command is “frmModel.Show”

  Do I need to add in another reference to avoid this error?

  • admin

    December 17, 2012 at 9:34 am · Reply

    This is almost certainly a problem with the RefEdit control. Please check the references using the VBA editor (Tools…. References…) to see if any are missing. If you see “Missing: Ref Edit Control”, then please try unchecking that item. You can also try repairing your Excel installation; for me this is under “Excel Options” “Resources” “run Microsoft Office Diagnostics”. Please let me know if this work. Andrew

• Martin

  October 11, 2012 at 10:40 pm · Reply

  It would be nice when sensitivity analysis capabilities can be added in the future

  • admin

    October 12, 2012 at 10:00 am · Reply

    We hope to look at it this Christmas; thanks for the reminder. Andrew. PS: You can view the duals in the current version, but no range information.