Sonja Mars

After installing your license file, you might receive the message:ERROR 10009: License is for 8 cores, machine has XXThis error message indicates you are trying to use the license on a machine that...

The errorERROR 10009: HostID mismatch indicates that the license file was generated for a machine with a different host ID. If the license file previously worked on the same machine, then something...

NOTE for WLS users: The command grbgetkey is not used with WLS licenses. Please see How do I resolve an "ERROR 202" when running grbgetkey?The grbgetkey executable is located within the full Gurobi...

If you are a faculty member, student, or staff of a recognized degree-granting academic institution, you can obtain a free academic license from our website. These licenses may only be used for res...

The Gurobi APIs (Java, Python, C++, .NET, R, and MATLAB) are thin layers built on top of the C API. These APIs collect the data and pass it on to the core library, which is written in C. From a sol...

We are happy to announce that our documentation has been moved to a new page. The page is located at docs.gurobi.com and includes our: Getting Started Pages Example Tour Reference Manual AMPL-Guro...

While running grbgetkey to retrieve a license file, you might receive the error:Communication failed, check your network connection or set variable HTTPS_PROXY if you need a proxyIf your computer i...

Gurobi versions are of the form X.Y.Z, where X is the major release, Y is the minor release, and Z is the technical release.Starting with major release 10, all Gurobi product releases are supported...

While setting up an academic license file via grbgetkey, you may receive the following error message:error : ERROR 303: Ip: <IP address> host "<hostname>" not recognized as belonging to an academic...

If grbgetkey produces a message that looks like this:info : grbgetkey version 13.0.1, build v13.0.1rc0 info : Contacting Gurobi license server... error : ERROR 405: Cannot reinstall license 99999...