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YAN ZHANG
YAN ZHANG

Reputation: 9

error with UndefVarError: `Optimizer` not defined

I am trying to use JumP and Ipopt under Julia v1.10.5. When I try to construct a model:Model(Ipopt.O optimizer） I get the following error message:

UnderVarError:OG=Model(Ipopt,Optimizer) ERROR: UndefVarError: Optimizer not defined Stacktrace: [1] top-level scope @ REPL[3]:1 But i have already installed the latest version of Jump and ipopt. Any ideas? Thanks!

Upvotes: 0

Views: 39

Answers (1)

Oscar Dowson
Oscar Dowson

Reputation: 2564

Your error has Model(Ipopt,Optimizer). It needs to be Model(Ipopt.Optimizer).

Note the period . instead of the comma ,.

Upvotes: 1

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