django：django.core.exceptions.AppRegistryNotReady：应用尚未加载

今天，当我想在服务器上部署django项目时，我陷入了这一过程。当我python manage.py runserver在服务器上运行时，终端向我显示以下内容：

Traceback (most recent call last):
  File "manage.py", line 10, in <module>
    execute_from_command_line(sys.argv)
  File "/usr/lib/python2.7/site-packages/django/core/management/__init__.py", line 351, in execute_from_command_line
    utility.execute()
  File "/usr/lib/python2.7/site-packages/django/core/management/__init__.py", line 343, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/usr/lib/python2.7/site-packages/django/core/management/__init__.py", line 177, in fetch_command
    commands = get_commands()
  File "/usr/lib/python2.7/site-packages/django/utils/lru_cache.py", line 101, in wrapper
    result = user_function(*args, **kwds)
  File "/usr/lib/python2.7/site-packages/django/core/management/__init__.py", line 72, in get_commands
    for app_config in reversed(list(apps.get_app_configs())):
  File "/usr/lib/python2.7/site-packages/django/apps/registry.py", line 137, in get_app_configs
    self.check_apps_ready()
  File "/usr/lib/python2.7/site-packages/django/apps/registry.py", line 124, in check_apps_ready
    raise AppRegistryNotReady("Apps aren't loaded yet.")
django.core.exceptions.AppRegistryNotReady: Apps aren't loaded yet.

服务器上的Django版本为1.8.5，本地版本为1.8.1。我怀疑版本可能会导致此问题。但我也怀疑wsgi.py写作是否正确，这是wsgi.py：

import os
import sys

path = '/Users/Peterhon/Desktop/dict/'
if path not in sys.path:
    sys.path.append(path)

os.chdir(path)

os.environ.setdefault("DJANGO_SETTINGS_MODULE", "dict.settings")

import django
django.setup()

from django.core.wsgi import get_wsgi_application
application = get_wsgi_application()

这是manage.py文件：

#!/usr/bin/env python
import os
import sys

if __name__ == "__main__":
    os.environ.setdefault("DJANGO_SETTINGS_MODULE", "dict.settings")

    from django.core.management import execute_from_command_line

    execute_from_command_line(sys.arg)

当我在服务器上运行python manage.py check时，输出如下：

#!/usr/bin/env python
import os
import sys

if __name__ == "__main__":
    os.environ.setdefault("DJANGO_SETTINGS_MODULE", "dict.settings")

    from django.core.management import execute_from_command_line

    execute_from_command_line(sys.argv)

有人可以给我一些提示吗？太感谢了