ModuleNotFoundError: No module named 'app' Heroku-CodePudding

When deoploying my website with Heroku, I run into the following issue:

ModuleNotFoundError: No module named 'qr_code'

so the website doesn't deploy

This is the log tail:

My requirements.txt contains the following:

asgiref==3.5.0
Django==4.0.3
django-qr-code==3.0.0
gunicorn==20.1.0
qrcode==7.3.1
segno==1.4.1
sqlparse==0.4.2

My Procfile:

web: gunicorn qrcode.wsgi

qrcode is the name of the folder containing the settings and wsgi file.

I have tried:

adding qr_code to the requirements
reinstalling the qr_code module
rewriting the requirements.txt via pip freeze > requirements.txt and then committing

CodePudding user response：

It looks like you have a typo in your settings.py. Something like this:

INSTALLED_APPS = [
    # ...
    'qr_code',
    # or
    'qr_code.apps.Qr_CodeConfig',
]

If your app is called qrcode, that's what should be in INSTALLED_APPS:

INSTALLED_APPS = [
    # ...
    'qrcode',
    # or
    'qrcode.apps.QrCodeConfig',
]

I see that you are also depending on the qrcode module from PyPI. Having two modules named qrcode in the same project is likely to create problems. For example, when you import qrcode you'll probably get your own app, not the library you're looking for.

Assuming that's true, consider naming your own app something different.