Currently I am investigating an MILP in Pyomo with gurobi. I would like to be able to add cuts during the B&B and found that callback functions can be used for this purpose. However, when I try to implement a callback function I get the following error: "callbacks disabled for solver gurobi". This error does not seem very common, and I wonder if you have any clue where it comes from.
I hope to hear from you.
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