Though I’ve never seen that error, I’m guessing that maybe you added ‘polls’ to your INSTALLED_APPS setting more than once. Simply remove the extra references to it.
From: [email protected] [mailto:[email protected]] On Behalf Of Paolo Chilosi Sent: Tuesday, May 15, 2018 6:52 AM To: Django users Subject: django 2.0 tutorial :: exception:: application labels are not unique. As new to Django I am learning following the tutorial carefully. When I reached the point of making the migration for the polls app I executed (from the PyCharm terminal) the command: (venv) C:\Users\Paolo\PycharmProjects\mysite>python manage.py makemigration polls and then I obtained the following exception messages Traceback (most recent call last): File "manage.py", line 15, in <module> execute_from_command_line(sys.argv) File "C:\Users\Paolo\PycharmProjects\mysite\venv\lib\site-packages\django\core\management\__ini t__.py", line 371, in execute_from_command_line utility.execute() File "C:\Users\Paolo\PycharmProjects\mysite\venv\lib\site-packages\django\core\management\__ini t__.py", line 347, in execute django.setup() File "C:\Users\Paolo\PycharmProjects\mysite\venv\lib\site-packages\django\__init__.py", line 24 , in setup apps.populate(settings.INSTALLED_APPS) File "C:\Users\Paolo\PycharmProjects\mysite\venv\lib\site-packages\django\apps\registry.py", line 93, in populate "duplicates: %s" % app_config.label) django.core.exceptions.ImproperlyConfigured: Application labels aren't unique, duplicates: polls (venv) C:\Users\Paolo\PycharmProjects\mysite> I reviewed carefully the code and restarted the tutorial several times , all the times having the same problem. ANY SUGGESTION?? thanks -- You received this message because you are subscribed to the Google Groups "Django users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]<mailto:[email protected]>. To post to this group, send email to [email protected]<mailto:[email protected]>. Visit this group at https://groups.google.com/group/django-users. To view this discussion on the web visit https://groups.google.com/d/msgid/django-users/653a7dd7-b330-4062-86b2-3fa06598008a%40googlegroups.com<https://groups.google.com/d/msgid/django-users/653a7dd7-b330-4062-86b2-3fa06598008a%40googlegroups.com?utm_medium=email&utm_source=footer>. For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "Django users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/django-users. To view this discussion on the web visit https://groups.google.com/d/msgid/django-users/1e6238fce8ad4f4fbb9706fda6390236%40ISS1.ISS.LOCAL. For more options, visit https://groups.google.com/d/optout.

