Installation to grasshopper

getting started
1

Hello,

I am a researcher working on shotcrete extrusion. I am having a minor hiccup in installing compas in grasshopper/rhino 8: The modules have the labeling “old” and the error “1. Solution exception:No module named compas”.

I have checked once more the dependencies, this is what I have:

Anaconda Environment:

I have set up an environment using Anaconda, and all installations, along with verification steps (except for the one witin Rhino 8 script editor), have been conducted within this environment.

Python:

Running python --version returns:
Python 3.13.2

COMPAS:

To verify the installation in Rhino 8, I ran the following in the script editor in Rhino:

import compas print(compas.version)

Output: 2.10.0

Additionally, executing python -m compas returns:

Yay! COMPAS is installed correctly! COMPAS: 2.10.0 Python: 3.13.2 (CPython) Extensions: [‘compas-fab’, ‘compas’, ‘compas-rrc’, ‘compas-robots’]

COMPAS FAB:

Running python -m compas_fab confirms the installation:

Yay! COMPAS FAB is installed correctly! COMPAS FAB: 1.0.2 COMPAS: 2.10.0 Python: 3.13.2 (CPython)

COMPAS RRC:

I installed COMPAS RRC using:

conda install -c conda-forge compas_rrc

Running python -c “import compas_rrc; print(compas_rrc.version)” returns:
2.0.0

My guess is I made a mistake when “letting Rhino 8/Grasshopper know, that compas is installed”. I am aware of this guide Working in Rhino 8 (with CPython) — COMPAS. Doing the verification step in it yields the required result.

Thank you,

Kind regards

2

hi,

conda environments and Rhino are independent from each other. installing COMPAS packages in a conda environment has no effect on Rhino, and vice versa.

to work with COMPAS in Rhino either follow the instructions in the main COMPAS docs: Working in Rhino 8 (with CPython) — COMPAS, or follow the instructions provided by the individual packages you want to use…

hope this helps,
tom