# \#maingo

**URL:** https://discourse.julialang.org/tag/maingo/1593.md

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## [JuMP+MAiNGO, no method matching +()](https://discourse.julialang.org/t/jump-maingo-no-method-matching/114514)

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**Author:** [@blob](https://discourse.julialang.org/u/blob)\
**Replies:** 1\
**Last updated:** [May 21, 2024, 8:19pm UTC](https://discourse.julialang.org/t/jump-maingo-no-method-matching/114514 "2024-05-21T20:19:37Z")

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I am using JuMP to solve a nonlinear optimization problem. If I use ipopt, the solver runs. If I use MAiNGO (GitHub - MAiNGO-github/MAiNGO.jl: A Julia Wrapper to use MAiNGO with JuMP) I get an error: Minimal (not)work…