# Gurobi v10 and Julia
**URL:** https://discourse.julialang.org/t/gurobi-v10-and-julia/90220
**Category:** Optimization (Mathematical)
**Created:** [November 14, 2022, 2:51am UTC](https://discourse.julialang.org/t/gurobi-v10-and-julia/90220 "2022-11-14T02:51:58Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@MirelEce](https://discourse.julialang.org/u/MirelEce)
#### Post date: [November 14, 2022, 2:51am UTC](https://discourse.julialang.org/t/gurobi-v10-and-julia/90220/1 "2022-11-14T02:51:58Z")
Hi there! I saw on Github that support for the version 10 of Gurobi is added and I just updated to that release of Gurobi; however couldn’t manage to use it in Julia (v1.7.2). I removed the package and added it again after upgrading to Gurobi v10, and when I’m trying to build Gurobi.jl, I get the error below. Would appreciate any help! Thank you!
Error building `Gurobi`:
ERROR: LoadError: Unable to locate Gurobi installation. If the advice above did not help,
open an issue at [GitHub - jump-dev/Gurobi.jl: Julia interface for Gurobi Optimizer](https://github.com/jump-dev/Gurobi.jl) and post the full
print-out of this diagnostic attempt.
Stacktrace:
[1] error(s::String)
@ Base .\error.jl:33
[2] top-level scope
@ C:\Users\mirel.julia\packages\Gurobi\WjZv8\deps\build.jl:167
[3] include(fname::String)
@ Base.MainInclude .\client.jl:451
[4] top-level scope
@ none:5
in expression starting at C:\Users\mirel.julia\packages\Gurobi\WjZv8\deps\build.jl:160
**Unable to locate Gurobi installation. Running some common diagnostics.**
Gurobi.jl only supports the following versions:
- gurobi95
- gurobi91
- gurobi90
Did you download and install one of these versions from [gurobi.com](http://gurobi.com)?
Installing Gurobi.jl via the Julia package manager is _not_ sufficient!
Found GUROBI\_HOME = C:\gurobi1000\win64
Does this point to the correct install location?
We’re going to look for the Gurobi library in this directory:
C:\gurobi1000\win64\bin
That directory has the following files:
- C:\gurobi1000\win64\bin\Gurobi100.NET.XML
- C:\gurobi1000\win64\bin\Gurobi100.NET.dll
- C:\gurobi1000\win64\bin\GurobiJni100.dll
- C:\gurobi1000\win64\bin\grb\_ts.exe
- C:\gurobi1000\win64\bin\grbcluster.exe
- C:\gurobi1000\win64\bin\grbgetkey.exe
- C:\gurobi1000\win64\bin\grbprobe.exe
- C:\gurobi1000\win64\bin\grbtune.exe
- C:\gurobi1000\win64\bin\gurobi.bat
- C:\gurobi1000\win64\bin\gurobi100.dll
- C:\gurobi1000\win64\bin\gurobi100\_light.dll
- C:\gurobi1000\win64\bin\gurobi\_cl.exe
- C:\gurobi1000\win64\bin\vslauncher.exe
- C:\gurobi1000\win64\bin\vswhere.exe
We were looking for (but could not find) a file named like
`libgurobiXXX.so`, `libgurobiXXX.dylib`, or `gurobiXXX.dll`.
You should set the `GUROBI_HOME` environment variable to point to the
install location then try again. For example (updating the path to the
correct location if needed):
```julia
# On Windows, this might be
ENV["GUROBI_HOME"] = "C:\\Program Files\\gurobi950\\win64\\"
import Pkg
Pkg.add("Gurobi")
Pkg.build("Gurobi")
# On OSX, this might be
ENV["GUROBI_HOME"] = "/Library/gurobi950/mac64/"
import Pkg
Pkg.add("Gurobi")
Pkg.build("Gurobi")
# On Unix, this might be
ENV["GUROBI_HOME"] = "/opt/gurobi950/linux64/"
import Pkg
Pkg.add("Gurobi")
Pkg.build("Gurobi")
```
**Note: your path may differ. Check which folder you installed the Gurobi
binary in, and update the path accordingly.**
---
### Author:  [@odow](https://discourse.julialang.org/u/odow)
#### Post date: [November 14, 2022, 2:55am UTC](https://discourse.julialang.org/t/gurobi-v10-and-julia/90220/2 "2022-11-14T02:55:25Z")
You need to update to `v0.11.4` of Gurobi.jl: [Release v0.11.4 · jump-dev/Gurobi.jl · GitHub](https://github.com/jump-dev/Gurobi.jl/releases/tag/v0.11.4)
Check which version you have with `using Pkg; Pkg.status("Gurobi")`
You can force the version to install with `using Pkg; pkg"add Gurobi@0.11.4"`
---
### Author:  [@MirelEce](https://discourse.julialang.org/u/MirelEce)
#### Post date: [November 14, 2022, 2:59am UTC](https://discourse.julialang.org/t/gurobi-v10-and-julia/90220/3 "2022-11-14T02:59:38Z")
Thank you so much for the fast reply, it worked!