django - loaddata error when converting db from sqlite3 to postgres

Question

I am trying to convert from a sqlite3 db to Postgres (so that I can have timezone-aware datetime fields with django 1.4). I dumped the data from the sqlite3 db. Then switched settings to point to the empty postgres db. Then ran syncdb, then south migrations. All good so far.

When I try to reload the dumped data into postgres, I get an error:

An exception occurred while loading data: duplicate key value violates unique constraint "django_content_type_app_label_model_key" DETAIL: Key (app_label, model)=(django_twilio, caller) already exists.

I removed twilio from the app and still got a similar error, just with the next object in the db.

Any help is appreciated. I'm new to programming and django. Thanks!

Answer 1

It is Django. I actually found the answer in an existing stackexchange post:

Switching Django project from sqlite3 backend to postgresql failes when loading datadump

I needed to TRUNCATE the database. Thank you for your help.