I was using AmplNLWriter with Ipopt_jll, but it stopped working when I installed MadNLP. I have removed all my packages and reinstalled (excluding MaNLP), but I have not been able to make AmplNLWriter to work. The error message suggests that the solver has not found a solution, but that is incorrect…

Are you setting any options? I think I’ve found the culprit: https://github.com/jump-dev/AmplNLWriter.jl/issues/147 Can you try: model = Model(() -> AmplNLWriter.Optimizer(Ipopt_jll.amplexe, ["print_level=5"])) I’ll take a look at the JuMP issue. That seems like something we should fix. (Althoug…

AmplNLWriter no longer works with JuMP

Specific Domains Optimization (Mathematical)

odow November 2, 2021, 12:41am 5

Ah. I see you’ve added the #master branch. Try https://github.com/jump-dev/AmplNLWriter.jl/pull/148

] add AmplNLWriter#odow-patch-1

Topic		Replies	Views
"bad line xxx of yyy.nl file" error with AmplNLWriter (but solves with Ipopt.jl) Optimization (Mathematical)	3	273	June 7, 2022
How to use non-linear solvers with JuMP using AmplNLWriter Optimization (Mathematical) jump , optimization	2	322	February 8, 2024
AmplNLWriter.jl with Ipopt from Ipopt.jl Optimization (Mathematical)	2	520	October 27, 2020
Solve problems starting from corresponding .nl files Optimization (Mathematical) question , optimization , nonlinear	7	528	December 13, 2022
AmplNLWriter : supports_constraint() is ambiguous in MathOptInterface Optimization (Mathematical)	9	768	November 27, 2019

AmplNLWriter no longer works with JuMP

Related topics