ImportError：没有模块命名模型？

我正在使用Django，并且我一直收到我的群组应用程序的这个错误，我检查了我所有的导入设置，并且一切正常。我的注册和个人档案应用程序运行平稳，但为什么这个应用程序给我一个模型的ImportError？ImportError：没有模块命名模型？

Traceback (most recent call last): 
    File "manage.py", line 14, in <module> 
    execute_manager(settings) 
    File "/usr/local/lib/python2.6/dist-packages/django/core/management/__init__.py", line 438, in execute_manager 
    utility.execute() 
    File "/usr/local/lib/python2.6/dist-packages/django/core/management/__init__.py", line 379, in execute 
    self.fetch_command(subcommand).run_from_argv(self.argv) 
    File "/usr/local/lib/python2.6/dist-packages/django/core/management/base.py", line 191, in run_from_argv 
    self.execute(*args, **options.__dict__) 
    File "/usr/local/lib/python2.6/dist-packages/django/core/management/base.py", line 219, in execute 
    self.validate() 
    File "/usr/local/lib/python2.6/dist-packages/django/core/management/base.py", line 249, in validate 
    num_errors = get_validation_errors(s, app) 
    File "/usr/local/lib/python2.6/dist-packages/django/core/management/validation.py", line 36, in get_validation_errors 
    for (app_name, error) in get_app_errors().items(): 
    File "/usr/local/lib/python2.6/dist-packages/django/db/models/loading.py", line 146, in get_app_errors 
    self._populate() 
    File "/usr/local/lib/python2.6/dist-packages/django/db/models/loading.py", line 64, in _populate 
    self.load_app(app_name) 
    File "/usr/local/lib/python2.6/dist-packages/django/db/models/loading.py", line 78, in load_app 
    models = import_module('.models', app_name) 
    File "/usr/local/lib/python2.6/dist-packages/django/utils/importlib.py", line 35, in import_module 
    __import__(name) 
    File "/home/gladiator/django_projects/classes/groups/models.py", line 6, in <module> 
    from groups.shortcuts import build_filename 
    File "/home/gladiator/django_projects/classes/groups/groups.py", line 5, in <module> 
    File "/home/gladiator/django_projects/classes/groups/decorators.py", line 2, in <module> 
    from groups.models import Group, GroupMember 
ImportError: No module named models

来源

2011-07-21 RubyGladiator