I too run into this error. What works is to power off VM. Close OpenFOAM and start it again. Also, please run rhino as admin.
I am not sure the version on food4rhino supports the latest version of OpenFOAM. In order to install the latest version of butterfly you’ll need to do the following.
- Remove Buttefly user objects from Grasshopper
- Go to
C:\Users\YOUR USER NAME\AppData\Roaming\McNeel\Rhinoceros\5.0\scripts
3 Here, you’ll find 1. butterfly and 2. butterfly_grasshopper. Remove both the folders. Restart rhino & GH - Download this repository as a zip by clicking on clone or download
- find a folder named “butterfly” and copy it to the path in step 2
- Download this repository as a zip by clicking on clone or download
- find a folder named “butterfly_grasshopper” and copy it to path in step 2
- In the last downloaded repository, also find userobjects for butterfly and copy them to userobjects folder or drag and drop them to the grasshopper canvas.
This should give you the latest version of butterfly.