Error creating migration in PostgreSQL database. What is the problem?

Question

Django

When migrating to PostgreSQL, it writes such an error. Everything is fine in sqlite.

Rendering model states...Traceback (most recent call last):
  File "manage.py", line 10, in <module>
    execute_from_command_line(sys.argv)
  File "/var/www/pjreo74/env/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 338, in execute_from_command_line
    utility.execute()
  File "/var/www/pjreo74/env/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 330, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/var/www/pjreo74/env/local/lib/python2.7/site-packages/django/core/management/base.py", line 393, in run_from_argv
    self.execute(*args, **cmd_options)
  File "/var/www/pjreo74/env/local/lib/python2.7/site-packages/django/core/management/base.py", line 444, in execute
    output = self.handle(*args, **options)
  File "/var/www/pjreo74/env/local/lib/python2.7/site-packages/django/core/management/commands/migrate.py", line 221, in handle
    executor.migrate(targets, plan, fake=fake, fake_initial=fake_initial)
  File "/var/www/pjreo74/env/local/lib/python2.7/site-packages/django/db/migrations/executor.py", line 104, in migrate
    state = migration.mutate_state(state, preserve=do_run)
  File "/var/www/pjreo74/env/local/lib/python2.7/site-packages/django/db/migrations/migration.py", line 83, in mutate_state
    operation.state_forwards(self.app_label, new_state)
  File "/var/www/pjreo74/env/local/lib/python2.7/site-packages/django/db/migrations/operations/models.py", line 110, in state_forwards
    state.remove_model(app_label, self.name_lower)
  File "/var/www/pjreo74/env/local/lib/python2.7/site-packages/django/db/migrations/state.py", line 84, in remove_model
    del self.models[app_label, model_name]
KeyError: ('houses', u'typelift')

Answer 1

Recreated all migrations, everything is up.