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[Solved] Error launching Flask app with error “Failed to find Flask application”

Hello Guys, How are you all? Hope You all Are Fine. Today I get the following error Error launching Flask app with error “Failed to find Flask application” in python. So Here I am Explain to you all the possible solutions here.

Without wasting your time, Let’s start This Article to Solve This Error.

How Error launching Flask app with error “Failed to find Flask application” Error Occurs?

Today I get the following error Error launching Flask app with error “Failed to find Flask application” in python.

How To Solve Error launching Flask app with error “Failed to find Flask application” Error ?

  1. How To Solve Error launching Flask app with error “Failed to find Flask application” Error ?

    To Solve Error launching Flask app with error “Failed to find Flask application” Error This should fix it, if not, make sure you are executing the command to run the script in the same directory as it.

  2. Error launching Flask app with error “Failed to find Flask application”

    To Solve Error launching Flask app with error “Failed to find Flask application” Error This should fix it, if not, make sure you are executing the command to run the script in the same directory as it.

Solution 1

Instead of just “flask” use FLASK_APP=theflaskapp.py, like what Marco suggested:

 env FLASK_APP=theflaskapp.py python -m flask run

This should fix it, if not, make sure you are executing the command to run the script in the same directory as it. You should also check if the problem is in flask or not by running “python theflaskapp.py” (In the same directory as the flask app still) and see if it works at all.

Solution 2

solution for flask 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. on windows when you tried set FLASKAPP=appname.py if your using PowerShell and if get the above error try this 👇👇

$env:FLASK_APP = "filename"
$env:FLASK_ENV = "development"
Flask run

try it if your having trouble launching the flask app.

Summery

It’s all About this issue. Hope all solution helped you a lot. Comment below Your thoughts and your queries. Also, Comment below which solution worked for you? Thank You.

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