Env. Variables not set while running Minimal Flask application

Question

I am trying to follow the flask documentation on my windows machine given at the following link: http://flask.pocoo.org/docs/0.11/quickstart/#debug-mode

Firstly I wrote

Answer 1

had a similar problem. got resolved by using the following: flask run --no-reload

learnt this from flask documentation http://flask.pocoo.org/docs/0.12/server/