Migration Errors (fields.E300)

[ayo...@thewulf.org]

I'm having an issue with migrating my Django application. 

I encounter the following errors when trying to migrate:

ERRORS:
accounts.Availability.channel: (fields.E300) Field defines a relation with model 'Channel', which is either not installed, or is abstract.
accounts.Correspondence.channel: (fields.E300) Field defines a relation with model 'Channel', which is either not installed, or is abstract.
accounts.Todo.channel: (fields.E300) Field defines a relation with model 'Channel', which is either not installed, or is abstract.
marketplace.Deliverable.channel: (fields.E300) Field defines a relation with model 'Channel', which is either not installed, or is abstract.
marketplace.OfflineServiceRequest.channel: (fields.E300) Field defines a relation with model 'Channel', which is either not installed, or is abstract.
marketplace.OperatorReview.channel: (fields.E300) Field defines a relation with model 'Channel', which is either not installed, or is abstract.
marketplace.Service.channel: (fields.E300) Field defines a relation with model 'Channel', which is either not installed, or is abstract.
marketplace.ServiceDelivery.channel: (fields.E300) Field defines a relation with model 'Channel', which is either not installed, or is abstract.

My installed apps definition:

DJANGO_APPS = [
    'suit',                    
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'django.contrib.sites',    
    ]


LOCAL_APPS = [                
    'thriive_api.accounts',    
    'thriive_api.utils',      
    'thriive_api.marketplace',
    'thriive_api.conversations',  
    'thriive_api.transactions'                                                                                                        
    ]


THIRDPARTY_APPS = [            
    'rest_framework_jwt',      
    'rest_framework',          
    'charity_check',          
    'restframework_stripe',    
    'redis_pubsub',            
    ]


INSTALLED_APPS = DJANGO_APPS + THIRDPARTY_APPS + LOCAL_APPS

and I'm referring to the model directly in the FK relation in my model definitions:

from redis_pubsub.models import Channel

class Availability(models.Model):
   channel = models.ForeignKey(Channel)

It seems like the migrations can't find the `redis_pubsub.Channel` model, which is installed in `THIRDPARTY_APPS` and is not abstract. The migration files themselves also refer to the correct model path (e.g. `redis_pubsub.Channel`), so what gives? Does anyone know what's going on here?

[Markus Holtermann]

Hi,

Can you please paste the migrations you created that refer to the Channel model. Make sure that those migrations depend on the redis_pubsub.0001_initial migration.

/Markus