Fix Conflicting migrations detected in Django1.9

Question

I updated django-dynamic-model repository to support Django 1.9. I got this error:

CommandError: 

Conflicting migrations detected; multiple leaf nodes in the mi         


        

Answer 1

The migrations need to have "straight" dependency chain, i.e. migration 0003 needs to depend on migration 0002, and 0002 on 0001.

You need to define this in the 0003_third.py like this:

class Migration(migrations.Migration):
    dependencies = [
        ('modulename', '0002_second'),
    ]

Answer 2

Seems like you have injected models of other applications.

Define TARGET_APP in your migrations, seems like migrations loader can't correctly identify target app.