Simranjit Kaur
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Gurobi Staff
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Articles
Recent activity by Simranjit Kaur-
How do I resolve an "ERROR 10009: License expired"?
The errorsERROR 10009: License expired yyyy-mm-dd ERROR 10009: Request denied: license expiredindicate that either your license has expired or Gurobi is finding an old expired license.Log in to you...
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ERROR 10009: Version number is xx, license is for version yy
An errorERROR 10009: Version number is xx, license is for version yyindicates that you are trying to use a License for version yy for Gurobi version xx.For example, "ERROR 10009: Version number is ...
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"ERROR 10009: License has expired" for an Academic WLS license
The errorsERROR 10009: License has expired gurobipy.GurobiError: License has expiredindicate that your Academic WLS license has expired.You can extend the WLS Academic license by yourself through t...
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How do I resolve an "ERROR 10009: License has expired" for an Academic WLS license?
The errorsERROR 10009: License has expired gurobipy.GurobiError: License has expiredindicate that your Academic WLS license has expired.You can extend the WLS Academic license by yourself through t...
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How do I resolve an "ERROR 10009: Version number is xx, license is for version yy"?
An errorERROR 10009: Version number is xx, license is for version yyindicates that you are trying to use a License for version yy for Gurobi version xx.For example, "ERROR 10009: Version number is ...
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How to resolve the error "Failed to connect to token.gurobi.com port 443"?
Gurobi's WLS license requires direct HTTPS connections (port 443) to https://token.gurobi.com. If you encounter the "Failed to connect to token.gurobi.com port 443" error, your machine has trouble ...
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How do I resolve ERROR 10009?
The error 10009 generally indicates an issue with the Gurobi license file or an issue with retrieving a token when using a floating/WLS license. For a specific error, please refer to the following ...
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How do I diagnose a suboptimal objective value returned as optimal by Gurobi?
If the objective value that Gurobi returns is not what you expected, the first step is to identify the type of wrong result. The most common reasons for this are: Termination criteria Gurobi retu...
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Why does Gurobi report my model is infeasible when it has a feasible solution?
If you have a known solution, the first step is to check that this solution is feasible for your model. Create a fixed model by fixing the variables to their values in the known solution. To do thi...
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How do I diagnose a wrong solution?
If the solution that Gurobi returns is not what you expected, the first step is to identify in which sense the solution is wrong. Common situations are: Gurobi returns a solution with unexpected v...