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: django-users@googlegroups.com [mailto:django-users@googlegroups.com] 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 django-users+unsubscr...@googlegroups.com<mailto:django-users+unsubscr...@googlegroups.com>. To post to this group, send email to django-users@googlegroups.com<mailto:django-users@googlegroups.com>. 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 django-users+unsubscr...@googlegroups.com. To post to this group, send email to django-users@googlegroups.com. 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.
