Django Migration Error: Column does not exist

Question

Python 3, Django 1.8.5, Postgres

I have a model Sites that has been working fine. I recently tried to add a field, airport_code, and migrate the data.

Answer 1

I too got same issue when i executed a cmd like python manage.py makemigrations app1. I resolved my issue by commenting the custom orms which is running in another app2 under views.

Example:

inside app1 models.py

class ModelA(models.Model):
    subject = models.CharField(max_length=1)
    course = models.CharField(max_length=1)

inside app2 view.py

# obj = ModelA.object.all()
# get_subjct = [s.subject for s in obj]

So here i have commented above code and executed the makemigrations and migrate then uncommented.

Working fine...