python manage.py migrate失败，无法同步数据库到mysql，求解！！

python manage.py migrate   执行后，主要表现最后一行的ModuleNotFoundError，但是我的Django版本是2.0以上，我又更改whoosh_cn_backend为whoosh_backend时运行，同样失败。求解，不懂。。。

 

(venv) D:\Django源码\blog>python manage.py migrate  
Operations to perform:
  Apply all migrations: admin, auth, contenttypes, sessions, storm, user
Running migrations:
  Applying contenttypes.0002_remove_content_type_name...Traceback (most recent call last):
  File "manage.py", line 22, in
    execute_from_command_line(sys.argv)
  File "C:\Users\Administrator\PycharmProjects\untitled\venv\lib\site-packages\django\core\management\__init__.py", line 381, in execute_from_comma
nd_line
    utility.execute()
  File "C:\Users\Administrator\PycharmProjects\untitled\venv\lib\site-packages\django\core\management\__init__.py", line 375, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "C:\Users\Administrator\PycharmProjects\untitled\venv\lib\site-packages\django\core\management\base.py", line 323, in run_from_argv
    self.execute(*args, **cmd_options)
  File "C:\Users\Administrator\PycharmProjects\untitled\venv\lib\site-packages\django\core\management\base.py", line 364, in execute
    output = self.handle(*args, **options)
  File "C:\Users\Administrator\PycharmProjects\untitled\venv\lib\site-packages\django\core\management\base.py", line 83, in wrapped
    res = handle_func(*args, **kwargs)
  File "C:\Users\Administrator\PycharmProjects\untitled\venv\lib\site-packages\django\core\management\commands\migrate.py", line 234, in handle
    fake_initial=fake_initial,
  File "C:\Users\Administrator\PycharmProjects\untitled\venv\lib\site-packages\django\db\migrations\executor.py", line 117, in migrate
    state = self._migrate_all_forwards(state, plan, full_plan, fake=fake, fake_initial=fake_initial)
  File "C:\Users\Administrator\PycharmProjects\untitled\venv\lib\site-packages\django\db\migrations\executor.py", line 147, in _migrate_all_forward
s
    state = self.apply_migration(state, migration, fake=fake, fake_initial=fake_initial)
  File "C:\Users\Administrator\PycharmProjects\untitled\venv\lib\site-packages\django\db\migrations\executor.py", line 246, in apply_migration
    self.record_migration(migration)
  File "C:\Users\Administrator\PycharmProjects\untitled\venv\lib\site-packages\django\db\migrations\executor.py", line 261, in record_migration
    self.recorder.record_applied(migration.app_label, migration.name)
  File "C:\Users\Administrator\PycharmProjects\untitled\venv\lib\site-packages\django\db\migrations\recorder.py", line 83, in record_applied
    self.migration_qs.create(app=app, name=name)
  File "C:\Users\Administrator\PycharmProjects\untitled\venv\lib\site-packages\django\db\models\query.py", line 422, in create
    obj.save(force_insert=True, using=self.db)
  File "C:\Users\Administrator\PycharmProjects\untitled\venv\lib\site-packages\django\db\models\base.py", line 741, in save
    force_update=force_update, update_fields=update_fields)
  File "C:\Users\Administrator\PycharmProjects\untitled\venv\lib\site-packages\django\db\models\base.py", line 790, in save_base
    update_fields=update_fields, raw=raw, using=using,
  File "C:\Users\Administrator\PycharmProjects\untitled\venv\lib\site-packages\django\dispatch\dispatcher.py", line 175, in send
    for receiver in self._live_receivers(sender)
  File "C:\Users\Administrator\PycharmProjects\untitled\venv\lib\site-packages\django\dispatch\dispatcher.py", line 175, in
    for receiver in self._live_receivers(sender)
  File "C:\Users\Administrator\PycharmProjects\untitled\venv\lib\site-packages\haystack\signals.py", line 51, in handle_save
    index = self.connections[using].get_unified_index().get_index(sender)
  File "C:\Users\Administrator\PycharmProjects\untitled\venv\lib\site-packages\haystack\utils\loading.py", line 109, in __getitem__
    self.thread_local.connections[key] = load_backend(self.connections_info[key]['ENGINE'])(using=key)
  File "C:\Users\Administrator\PycharmProjects\untitled\venv\lib\site-packages\haystack\utils\loading.py", line 60, in load_backend
    return import_class(full_backend_path)
  File "C:\Users\Administrator\PycharmProjects\untitled\venv\lib\site-packages\haystack\utils\loading.py", line 27, in import_class
    module_itself = importlib.import_module(module_path)
  File "D:\Python37\lib\importlib\__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "", line 1006, in _gcd_import
  File "", line 983, in _find_and_load
  File "", line 965, in _find_and_load_unlocked
ModuleNotFoundError: No module named 'storm.whoosh_cn_backend'