Starting from version 2.20, the built-in link to older gurobi versions is no longer included in the installation of PlanWise.
Here we provide a linking file (a dll fille) that makes it easy for you to use older gurobi as a plugin (with unaffected performance). If your version of Gurobi is missing, please email support.heureka@slu.se

Instructions:
1. Close PlanWise if it is open.
2. Download the file HeurekaToGurobi70.dll and put it in the folder MYDIR\Heureka\Common\Plugins, where MYDIR is the working directory, for example C:\My Documents.
3. Right-click HeurekaToGurobi70.dll, select Properties and make sure the file is "Unblocked" (This is a security feature in Windows to prevent running of downloaded libraries).
4. Search for the file Gurobi70.NET.dll on your computer. These files are installed when you install Gurobi (This file is typically located in your Gurobi installation folder, under INSTDIR\win64\bin.
5. Copy Gurobi70.NET.dll to the Plugins-folder too.


That is all you have to do, and Gurobi should be available as a solver option when you have restarted PlanWise.