Авторизация Google OAuth 2 - пользовательская модель User. Ошибка: У пользователя нет поля с именем 'username'
Яm trying to make the authorization via Google. I use a custom user model with an email as a username field.  Once I login, I choose the email I want to login with. Then Iполучил желтый экран с ошибкой "FieldDoesNotExist at /accounts/google/login/callback/
User has no field named 'username'". Если кто-нибудь может мне помочь, я буду очень признателен.
Мои модели:
# users/models.py
from django.db import models
from django.contrib.auth.models import AbstractBaseUser, PermissionsMixin, BaseUserManager
class User(AbstractBaseUser, PermissionsMixin):
    email = models.EmailField(db_index=True, unique=True, max_length=254)
    first_name = models.CharField(max_length=30, help_text="Ваше имя")
    last_name = models.CharField(blank=True, null=True, max_length=30, help_text="Ваша фамилия")
    mobile = models.CharField(max_length=30, help_text='Ваш телефон')
    status = models.CharField(blank=True, null=True, max_length=3, choices=TYPE_OF_CLIENT, default=POTENTIAL)
    is_staff = models.BooleanField(default=True)
    is_active = models.BooleanField(default=True)
    is_superuser = models.BooleanField(default=False)
    objects = CustomUserManager()
    USERNAME_FIELD = 'email'
    REQUIRED_FIELDS = []
Мои настройки:
INSTALLED_APPS = [
...
    'django.contrib.sites',
    'allauth',
    'allauth.account',
    'allauth.socialaccount',
    'allauth.socialaccount.providers.google',
]
SITE_ID = 1
ACCOUNT_AUTHENTICATION_METHOD = 'email'
ACCOUNT_EMAIL_REQUIRED = True
ACCOUNT_UNIQUE_EMAIL = True
ACCOUNT_USERNAME_REQUIRED = None
AUTHENTICATION_BACKENDS = [
    'django.contrib.auth.backends.ModelBackend',
    'allauth.account.auth_backends.AuthenticationBackend',
]
SOCIALACCOUNT_PROVIDERS = {
    'google': {
        'SCOPE': [
            'profile',
            'email',
        ],
        'AUTH_PARAMS': {
            'access_type': 'online',
        }
    }
}
URL PATTERNS
urlpatterns = [
...
    path('accounts/', include('allauth.urls')),
] + static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)
Мои настройки URI Google введите описание изображения здесь
Ошибка введите описание изображения здесь
Я нашел решение
SITE_ID = 1
ACCOUNT_USER_MODEL_USERNAME_FIELD = None
ACCOUNT_EMAIL_REQUIRED = True
ACCOUNT_USERNAME_REQUIRED = False
ACCOUNT_AUTHENTICATION_METHOD = 'email'
ACCOUNT_FORMS = {'signup': 'users.forms.CreationForm'}