Doing the tutorial, I had trouble adding links to the navbar. The command
npm install react-router-bootstrap
currently installs v0.26.0, which added support for React Router v6. This is not compatible with the specified version of "react-router-dom": "^5.2.0" in the tutorial, which uses the old useHistory function instead of useNavigate.
I was able to fix the issue by running
npm install react-router-bootstrap@0.25.0 --save
in the frontend folder, to match the version in the tutorial repository.
Maybe we should mention this in the tutorial ?