Django Help：AttributeError：'module'对象没有属性'Charfield'

I have seen several similar posts of other attributes found but not this. New to Python and Django- I've done the first part of the several tutorials including Django's "Polls" tutorial and when it gets to the point where I syncdb for my app I invariably get 'AttributeError: 'module' object has no attribute CharField. I have seen several similar posts of other attr