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Questions - set-cover

AttributeError: 'LpAffineExpression' object has no attribute 'solve', Error in Pullp

I'm trying to implement a problem a basis problem os Set covering with python, but pulp gives me all the time the error: AttributeError: 'LpAffineExpression' object has no attribute 'solve' This is wh...
test-img

jopelines

python

pulp

set-cover

Votes: 0

Answers: 1

Latest Answer

You are overwriting the modelo variable when defining the objective, so it's no longer a pulp.LpProblem. Use modelo += lp.lpSum(x[j] for j in J) instead. Note the += instead of the =. Alternatively,...
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joni

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