Problem installing SigmoidalProgramming

I made a couple of changes so that it should work with the latest versions of JuMP and the solvers. You should be able to install it via my branch: Bump compat versions to support JuMP v1 by odow · Pull Request #14 · madeleineudell/SigmoidalProgramming.jl · GitHub

But note that SigmoidalProgramming is old, has no tests, and is not supported. I’ll suggest again that the best course of action is for you to download the code and fix it locally:

x-ref Using custom built Clp binaries for v1.0.1 · Issue #136 · jump-dev/Clp.jl · GitHub