Unable to run app.py (ModuleNotFoundError)

[tealnshack]

I am trying to run through local development and I haven't been able to get app.py to run backend URL output. The error that shows up is :

from flask_cors import CORS, cross_origin
ModuleNotFoundError: No module named 'flask_cors'

I did run the command: 'pip install -r requirements.txt' in the virtual environment that I created, but the error persists.

When running 'pip freeze' command, I get the following

Further, if I try to install flask_cors module, using 'pip install -U flask-cors', the output shows requirement already satisfied.

[saharmor]

@tealnshack have you tried running pip install -U flask-cors?

[tealnshack]

Yeah, when I do it, the package is visible but when I run the command to start the web server the same error pops up despite the package being installed in the virtual environment