I ran into an Issue (resolved already as a separate issue in this repo) about a Werkzeug version conflict. Running flask run -p 5001 resulted in the following error:

• Error: Could not locate Flask application. You did not provide the FLASK_APP environment variable.

I resolved this by adding 'export FLASK_APP=app.py' in the .env file, rerunning 'source .env' and then rerunning 'flask run -p 5001' to get it running.