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I want to start the flask server using anaconda Prompt. while starting,it is showing the following error.How to resolve error. I am getting the following error.

• Environment: production WARNING: Do not use the development server in a production environment. Use a production WSGI server instead.
  • Debug mode: off Usage: flask run [OPTIONS]

Error: Could not locate a Flask application. You did not provide the "FLASK_APP" environment variable, and a "wsgi.py" or "app.py" module was not found in the current directory.

Answers

The problem is you need to set flask's debug mode to true.

set FLASK_APP = yourfilename.py
set FLASK_DEBUG = 1

and then use:

flask run 

to run your server.

Note: If you are on mac/linux use export instead of set