Cannot save property group to product in django-lfs

I already create properties and add them to property group.Th开发者_运维百科en I assign to my new product.But django show me

TypeError at /manage/update-product-properties/1
save() got an unexpected keyword argument 'using'

Yeah, as you point out in your comment to your OP, the problem went away by using a different version of Django. using is part of the machinery for multi-database support in Django 1.2