CPLEX does not work with version 22.1.1

[RaimundK2]

After installing and calling using CPLEX, I get

ERROR: LoadError: You have installed version 22.1.1 of CPLEX, which is not supported
by CPLEX.jl. We require CPLEX version 12.10 or 20.1.

After installing CPLEX, run:

import Pkg
Pkg.rm("CPLEX")
Pkg.add("CPLEX")

etc ...

Interestingly CPLEX.jl worked without problems with the same CPLEX version until two days ago.

[odow]

You need CPLEX.jl v0.9.6 or v0.9.7 to use CPLEX 22.1.1.

Check import Pkg; Pkg.status().

[RaimundK2]

Thanks for the quick answer. Strangely enough, it seems that the correct version has been replaced by an older one - maybe through some installation of another package (?) updated to the new one

…

________________________________ Von: Oscar Dowson ***@***.***> Gesendet: Dienstag, 21. März 2023 00:22 An: jump-dev/CPLEX.jl ***@***.***> Cc: Raimund Kovacevic ***@***.***>; Author ***@***.***> Betreff: Re: [jump-dev/CPLEX.jl] CPLEX does not work with version 22.1.1 (Issue #426) You need CPLEX.jl v0.9.6 or v0.9.7 to use CPLEX 22.1.1. Check import Pkg; Pkg.status(). — Reply to this email directly, view it on GitHub<#426 (comment)>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/A6R3XFVNI4NEZSAWHU6WYR3W5DRDZANCNFSM6AAAAAAWBVQ7W4>. You are receiving this because you authored the thread.Message ID: ***@***.***>

[odow]

Yes, another package is likely holding you back. You can see which if you run import Pkg; Pkg.pkg"add [email protected]"..

[odow]

Any update on this?

[odow]

Closing as stale. The latest version of CPLEX.jl does with 22.1.1, so anyone experiencing this in future should update their packages.

[harshangrjn]

@odow I still get this issue on Mac M2 with CPLEX 22.1 and CPLEX.jl v1.0.2. I have the ENV["CPLEX_STUDIO_BINARIES"] set up correctly. But build CPLEX keeps giving this error and doesn't build:

ERROR: Error building `CPLEX`: 
You should set the `CPLEX_STUDIO_BINARIES` environment variable 

Is there something I am missing?

[odow]

What is ENV["CPLEX_STUDIO_BINARIES"]? Did you install the aarch64 build of CPLEX?

[harshangrjn]

ENV["CPLEX_STUDIO_BINARIES"] = "/Applications/CPLEX_Studio221/cplex/bin/x86-64_osx/"

Not sure of aarch64 build. Installed the version from the IBM website for Mac OS and didn't throw any error during installation.

[odow]

This looks like you installed the intel version: x86-64

[harshangrjn]

I see! Let me try the ARM version.

[odow]

It wouldn't error on install because Apple has a compatibility layer called Rosetta. But you need to make sure that the build of CPLEX is the same as the build of Julia. So both x86 or both aarch64. If you have a mis-match they can't find each other.

[harshangrjn]

Which version of CPLEX.jl is compatible with x86? ARM build installation is crashing for some reason on M2.

[odow]

Which version of CPLEX.jl is compatible with x86?

You have two options for downloading Julia: https://julialang.org/downloads/

• If you install macOS x86, then you must also install the x86 version of CPLEX
• If you install macOS (Apple silicon), then you must also install the arm/aarch64/silicon version of CPLEX

You don't need a specific version of CPLEX.jl

ARM build installation is crashing for some reason on M2

What's the error? And what is the filename that you tried to install?

[harshangrjn]

Great - that works! I had installed the Apple Silicon version of Julia, but the CPLEX-ARM installation crashes without giving any specific error. But Julia-rosetta + CPLEX-22.1-rosetta with recent CPLEX.jl all work fine.