The Install guide is missing python requirements to successfully build ./Ref.

[gnac]

The install guide is missing some requirements to successfully build the Ref folder.

The guide has you installing fprime-util and fprime-gds in a virtual environment. However you also need to install the packages in fprime/requirements.txt otherwise invoking fprime-util generate in the fprime/Ref directory will fail with an error about missing tools.

   fpp tools not found. Install with:
    'pip install -r ".<>/fprime/requirements.txt"'

It might be nice to just start with this from scratch. eg
pip3 install -r ./fprime/requirements.txt