update

  File "/opt/noc/contrib/lib/django/db/models/loading.py", line 146, in get_app_errors
    self._populate()
  File "/opt/noc/contrib/lib/django/db/models/loading.py", line 64, in _populate
    self.load_app(app_name)
  File "/opt/noc/contrib/lib/django/db/models/loading.py", line 78, in load_app
    models = import_module('.models', app_name)
  File "/opt/noc/contrib/lib/django/utils/importlib.py", line 35, in import_module
    __import__(name)
  File "/opt/noc/main/models/__init__.py", line 30, in <module>
    from noc.lib.fields import BinaryField
  File "/opt/noc/lib/fields.py", line 15, in <module>
    from noc.lib.widgets import ColorPickerWidget
  File "/opt/noc/lib/widgets.py", line 212, in <module>
    from noc.lib.app.site import site
  File "/opt/noc/lib/app/__init__.py", line 11, in <module>
    from modelapplication import *
  File "/opt/noc/lib/app/modelapplication.py", line 13, in <module>
    from django.contrib.admin import SimpleListFilter, FieldListFilter
ImportError: cannot import name SimpleListFilter
post-update: : syncdb failed
Terminating
$