FieldError: Unknown field(s) specified

7 Dec 2025

1 min read

FieldError: Unknown fields

$ python -c "class X: pass; getattr(X,'missing')"
Traceback (most recent call last):
  File "<string>", line 1, in <module>
AttributeError: type object 'X' has no attribute 'missing'

Why this happens

You referenced fields not on the model (typos, renamed fields) in filters, annotations, or forms.

Fix

Verify field names against the model; update forms and queries accordingly.

Wrong code

User.objects.filter(usename='joe')

Fixed code

User.objects.filter(username='joe')