This is the error message that appears to me when I try to install JuMPer
julia> Pkg.add("JuMPeR")
Updating registry at `C:\Users\raque\.juliapro\JuliaPro_v1.0.5-2\registries\JuliaPro`
Updating git-repo `https://pkg.juliacomputing.com//registry/JuliaPro`
Resolving package versions...
ERROR: Unsatisfiable requirements detected for package JuMP [4076af6c]:
JuMP [4076af6c] log:
├─possible versions are: [0.18.3-0.18.6, 0.19.0-0.19.2, 0.20.0-0.20.1, 0.21.0-0.21.3] or uninstalled
├─restricted to versions 0.21.3 by an explicit requirement, leaving only versions 0.21.3
└─restricted by compatibility requirements with JuMPeR [707a9f91] to versions: 0.18.5-0.18.6 — no versions left
└─JuMPeR [707a9f91] log:
├─possible versions are: 0.6.0 or uninstalled
└─restricted to versions * by an explicit requirement, leaving only versions 0.6.0
I can’t find the version that is compatible with JuMPeR