This is a duplicate of the following discussion:
Default Mesh Color in Rhino - compas - compas (compas-framework.org)
Short answer: install version 2.
Long answer: fork the latest repo and type similar bash commands in the Anaconda prompt:
Step 1 - Clone repo from github
git clone: https://github.com/compas-dev/compas.git
cd C:\brg\2_code\compas
Step 2 - Create environment (if you are using RhinoCode specify the correct python version):
conda create -n compas_dev python=3.9.10
or if you need additional dependencies:
conda create -n view2 -c conda-forge compas_view2
Step 3 - activate environment and install requirements
conda activate compas_dev
pip install -r requirements-dev.txt
Step 4 - Install rhino part, depending if you are using 7 or Rhino 8 Beta:
python -m compas_rhino.install -v 8.0 compas