Constraint has no bool value

Answered

Chenshi Jia

• November 23, 2023 12:24

Hi,

when I add a lazy constraint  which is a variable less than a float number, I meet the error as follows:

print(ro[0])
print(model._eta[0])
model.cbLazy(ro[0] >= model._eta[0])

Please suggest.

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• 

  Simranjit Kaur

  Gurobi Staff

  • November 23, 2023 21:40

  Please take a look at the article How do I resolve the error 'Constraint has no bool value (are you trying "lb <= expr <= ub"?)'?.

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