id summary reporter owner description type status component version severity resolution keywords cc stage has_patch needs_docs needs_tests needs_better_patch easy ui_ux 30452 'AppRegistryNotReady' error after Django Upgrade from 1.8 to 1.9 version vinay nobody "In our process of upgrading our Django project from 1.8 to 1.9 version, we removed all the deprecation warnings/errors according to Django-1.9 release notes. But, after updating the Django version to 1.9 in the project's virtual environment, we got the following error: {{{ raise AppRegistryNotReady(""Apps aren't loaded yet."") django.core.exceptions.AppRegistryNotReady: Apps aren't loaded yet. }}} We have many installed apps in the project and using PostgreSQL-9.5 database. We know that the apps which have model classes in it, cause this error to occur. The above error even occured when connecting to the database using connection cursor: {{{ django.db.connection.cursor().execute() }}} " Cleanup/optimization closed Uncategorized Release blocker invalid Django Upgrade, Django-1.9, Django-1.8, AppRegistryNotReady Unreviewed 0 0 0 0 0 0