django.db.utils.IntegrityError: duplicate key value violates unique constraint "django_content_type_pkey"
How do I fix django.db.utils.IntegrityError: duplicate key value violates unique constraint?
/django.db.utils.IntegrityError: NOT NULL constraint failed/ after python manage.py migrate app zero IntegrityError in Django IntegrityError: UNIQUE constraint failed: roomer_room.id in django test case Django: IntegrityError: column user_id is not unique Django models.DateTimeField django.db.utils.IntegrityError: NOT NULL constraint failed Django Rest Framework duplicate key value violates unique constraint when using UserProfile create signal IntegrityError: ERROR: null value in column "user_id" violates not-null constraint Django / duplicate key value violates unique constraint IntegrityError: null value in column "city_id " violates not-null constraint Django MPTT duplicate key value violates unique constraint Django key violates unique constraint IntegrityError at. insert or update on table violates foreign key constraint django.db.utils.IntegrityError: NOT NULL constraint failed: products_product.image ERROR WITH IMAGE FIELD django.db.utils.IntegrityError: UNIQUE constraint failed: core_profile.user_id [Django]django.db.utils.IntegrityError django.db.utils.IntegrityError: NOT NULL constraint failed: app.area_id Django - IntegrityError - Not null constraint django.db.utils.IntegrityError: NOT NULL constraint failed Django Model IntegrityError: NOT NULL constraint failed: Django - duplicate key value violates unique constraint django.db.utils.IntegrityError: column "color_set_id" contains null values Django makemigrations works, migrate fails with "django.db.utils.IntegrityError: NOT NULL constraint failed" Createsuperuser django.db.utils.IntegrityError: NOT NULL constraint failed django.db.utils.IntegrityError: duplicate key value violates unique constraint "spirit_category_category_pkey" Django Rest Framework: Duplicate key value violates unique constraint Django: duplicate key value violates unique constraint SQLAlchemy IntegrityError duplicate key violates unique-constraint Django IntegrityError Why is Django giving me this "violates not-null constraint" error?