Same problem here, same satchmo, same django, same problem:
Traceback (most recent call last):
File "/usr/lib/python2.5/site-packages/django/core/management/
commands/runserver.py", line 47, in inner_run
self.validate(display_num_errors=True)
File "/usr/lib/python2.5/site-packages/django/core/management/
base.py", line 117, in validate
num_errors = get_validation_errors(s, app)
File "/usr/lib/python2.5/site-packages/django/core/management/
validation.py", line 28, in get_validation_errors
for (app_name, error) in get_app_errors().items():
File "/usr/lib/python2.5/site-packages/django/db/models/loading.py",
line 128, in get_app_errors
self._populate()
File "/usr/lib/python2.5/site-packages/django/db/models/loading.py",
line 57, in _populate
self.load_app(app_name, True)
File "/usr/lib/python2.5/site-packages/django/db/models/loading.py",
line 72, in load_app
mod = __import__(app_name, {}, {}, ['models'])
File "/home/bod/projects/project/apps/shop/models.py", line 14, in
<module>
from apps.contact.models import Contact, Order
File "/home/bod/projects/project/apps/contact/models.py", line 14,
in <module>
from apps.discount.models import Discount
File "/home/bod/projects/project/apps/discount/models.py", line 16,
in <module>
from apps.product.models import Product
File "/home/bod/projects/project/apps/product/models.py", line 317,
in <module>
class Product(models.Model):
File "/home/bod/projects/project/apps/product/models.py", line 331,
in Product
category = models.ManyToManyField(Category, filter_interface=True,
blank=True, verbose_name=_("Category"))
File "/usr/lib/python2.5/site-packages/django/db/models/fields/
related.py", line 751, in __init__
Field.__init__(self, **kwargs)