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Python Django Basics Test Time Congratulations!

Gilang Ilhami
Gilang Ilhami
12,045 Points

Had an error when i was trying to migrate songs

One of the crucial part or Django is that you must migrate every time there is a change in the models.py. In the "Django TDD" challenge, i received an error when i was trying to migrate the models.

", line 50, in emit_post_migrate_signal                                                          
  File "/usr/local/pyenv/versions/3.5.0/lib/python3.5/site-packages/django/dispatch/dispatcher.py
", line 192, in send                                                                             
    response = receiver(signal=self, sender=sender, **named)                                     
  File "/usr/local/pyenv/versions/3.5.0/lib/python3.5/site-packages/django/contrib/auth/managemen
t/__init__.py", line 85, in create_permissions                                                   
    ctype = ContentType.objects.db_manager(using).get_for_model(klass)                           
  File "/usr/local/pyenv/versions/3.5.0/lib/python3.5/site-packages/django/contrib/contenttypes/m
odels.py", line 80, in get_for_model                                                             
    "Error creating new content types. Please make sure contenttypes "                           
RuntimeError: Error creating new content types. Please make sure contenttypes is migrated before 
trying to migrate apps individually.

Because of this, i was un able to past some of the codes. Can somebody explain to me why this happened and what is the best solution for this?

My codes: https://w.trhou.se/qhviibvekw

1 Answer

24,260 Points

Just had the same problem, but I've found a fix.
You need to migrate the auth app and then try songs again.

manage.py migrate auth
manage.py migrate songs

(Found on stackoverflow: http://stackoverflow.com/a/36030740)