Operations to perform: Synchronize unmigrated apps: sessions, auth, contenttypes, admin, app_sec Apply all migrations: app_main Synchronizing apps without migrations: Creating tables... Installing custom SQL... Installing indexes... Running migrations: Applying app_main.0001_initial...Traceback (most recent call last): File "./manage.py", line 10, in execute_from_command_line(sys.argv) File "/var/local/venvs/cms-1.7-3.4/lib/python3.4/site-packages/django/core/management/__init__.py", line 427, in execute_from_command_line utility.execute() File "/var/local/venvs/cms-1.7-3.4/lib/python3.4/site-packages/django/core/management/__init__.py", line 419, in execute self.fetch_command(subcommand).run_from_argv(self.argv) File "/var/local/venvs/cms-1.7-3.4/lib/python3.4/site-packages/django/core/management/base.py", line 288, in run_from_argv self.execute(*args, **options.__dict__) File "/var/local/venvs/cms-1.7-3.4/lib/python3.4/site-packages/django/core/management/base.py", line 337, in execute output = self.handle(*args, **options) File "/var/local/venvs/cms-1.7-3.4/lib/python3.4/site-packages/django/core/management/commands/migrate.py", line 146, in handle executor.migrate(targets, plan, fake=options.get("fake", False)) File "/var/local/venvs/cms-1.7-3.4/lib/python3.4/site-packages/django/db/migrations/executor.py", line 62, in migrate self.apply_migration(migration, fake=fake) File "/var/local/venvs/cms-1.7-3.4/lib/python3.4/site-packages/django/db/migrations/executor.py", line 96, in apply_migration migration.apply(project_state, schema_editor) File "/var/local/venvs/cms-1.7-3.4/lib/python3.4/site-packages/django/db/migrations/migration.py", line 107, in apply operation.database_forwards(self.app_label, schema_editor, project_state, new_state) File "/var/local/venvs/cms-1.7-3.4/lib/python3.4/site-packages/django/db/migrations/operations/models.py", line 27, in database_forwards apps = to_state.render() File "/var/local/venvs/cms-1.7-3.4/lib/python3.4/site-packages/django/db/migrations/state.py", line 68, in render raise InvalidBasesError("Cannot resolve bases for %r" % new_unrendered_models) django.db.migrations.state.InvalidBasesError: Cannot resolve bases for []