django heroku makemigrations ignoring changes in models

Question

I deleted two models from models.py, and when I run makemigrations and migrate locally, everything is fine. When I run makemigrations on Heroku, I get the following message, where Building and BuildingInstance are the models I deleted:

Migrations for 'hello':
0002_building_buildinginstance.py:
- Create model Building
- Create model BuildingInstance

When I run migrate, I get:

Running migrations:
No migrations to apply.
Your models have changes that are not yet reflected in a migration, and so won't be applied.
Run 'manage.py makemigrations' to make new migrations, and then re-run 'manage.py migrate' to apply them.

I followed the steps here and also tried squashing the migrations locally and on Heroku as suggested here. How can I fix this problem?

You only have a ``default`` database or are you using a db router? — Grimmy, Apr 28 '17 at 22:37
It usually helps to inspect the contents of the ``django_migrations`` table. Maybe something is out of sync. — Grimmy, Apr 28 '17 at 22:51

score 1 · Answer 1 · answered Apr 29 '17 at 06:27

1

As I have written many times here, you must not run makemigrations on Heroku. Run it locally, commit the result, and then run migrate on Heroku.

answered Apr 29 '17 at 06:27

Daniel Roseman

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I still get the same error when I follow those steps – ech19 Apr 29 '17 at 15:08

django heroku makemigrations ignoring changes in models

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