gurobipy.GurobiError: Error number 20000

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Mike Pham

2021年11月23日 12:12 編集済み

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Hi, I'm facing this error that I'm hardly finding any resources online. The problem is in the title. I've seen this post that suggests that I'm using the Model.cbCut() method, but I'm not using it anywhere in my code. My model has multiple objectives set up by using Model.setObjectiveN() and has a lazy constraint by passing a callback to Model.optimize() but I can't find anything wrong with it.

I just want some high-level guidance that on this error, e.g. what this error typically means, and how I would go about debugging this problem. I'm happy to share my code, I just thought that it might not be useful in this particular case.

Thanks everyone in advance.

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• 正式なコメント

  

  Simranjit Kaur

  • Gurobi Staff

  2024年12月06日 00:23

  This post is more than three years old. Some information may not be up to date. For current information, please check the Gurobi Documentation or Knowledge Base. If you need more help, please create a new post in the community forum. Or why not try our AI Gurobot?.
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  Gwyneth Butera

  • Gurobi Staff

  2021年11月23日 16:52

  Hi Mike - Can you let us know what version of Gurobi you are using? Have you tested with 9.5? Thanks! G.

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  Mike Pham

  2021年11月23日 21:35

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  Hi Gwyneth, I’m using Gurobi 9.5, installed with pip

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  Mike Pham

  2021年11月24日 23:03

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  Hi Gwyneth, is there any update on this?

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  Jaromił Najman

  • Gurobi Staff

  2021年11月25日 12:28

  Hi Mike,

  Could you provide a minimal working example reproducing this issue?

  Best regards,
  Jaromił

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