（最終更新月：2021年8月）
django-allauthを使った際に、下記のエラーが出てきてしまいました
WARNINGS:
account.EmailAddress: (models.W042) Auto-created primary key used when not defining a primary key type, by default
'django.db.models.AutoField'.
HINT: Configure the DEFAULT_AUTO_FIELD setting or the AccountConfig.default_auto_field attribute to point to a subclass of AutoField, e.g. 'django.db.models.BigAutoField'.
account.EmailConfirmation: (models.W042) Auto-created primary key used when not defining a primary key type, by default 'django.db.models.AutoField'.
HINT: Configure the DEFAULT_AUTO_FIELD setting or the AccountConfig.default_auto_field attribute to point to a subclass of AutoField, e.g. 'django.db.models.BigAutoField'.
accounts.GroupSettings: (models.W042) Auto-created primary key used when not defining a primary key type, by default 'django.db.models.AutoField'.
HINT: Configure the DEFAULT_AUTO_FIELD setting or the AccountsConfig.default_auto_field attribute to point
to a subclass of AutoField, e.g. 'django.db.models.BigAutoField'.
accounts.Profile: (models.W042) Auto-created primary key used when not defining a primary key type, by default 'django.db.models.AutoField'.
HINT: Configure the DEFAULT_AUTO_FIELD setting or the AccountsConfig.default_auto_field attribute to point
to a subclass of AutoField, e.g. 'django.db.models.BigAutoField'.
accounts.User: (models.W042) Auto-created primary key used when not defining a primary key type, by default 'django.db.models.AutoField'.
HINT: Configure the DEFAULT_AUTO_FIELD setting or the AccountsConfig.default_auto_field attribute to point
to a subclass of AutoField, e.g. 'django.db.models.BigAutoField'.
efault 'django.db.models.AutoField'.
oint to a subclass of AutoField, e.g. 'django.db.models.BigAutoField'.
socialaccount.SocialApp: (models.W042) Auto-created primary key used when not defining a primary key type, by default 'django.db.models.AutoField'.
HINT: Configure the DEFAULT_AUTO_FIELD setting or the SocialAccountConfig.default_auto_field attribute to point to a subclass of AutoField, e.g. 'django.db.models.BigAutoField'.
socialaccount.SocialToken: (models.W042) Auto-created primary key used when not defining a primary key type, by default 'django.db.models.AutoField'.
HINT: Configure the DEFAULT_AUTO_FIELD setting or the SocialAccountConfig.default_auto_field attribute to point to a subclass of AutoField, e.g. 'django.db.models.BigAutoField'.
備忘録も兼ねて解決策は下記の通りです！
settings.py内で、
DEFAULT_AUTO_FIELD = 'django.db.models.AutoField'
を記載しましょう！
✔Webアプリの公開にはVPSがおすすめ
DjangoなどのWebアプリは、レンタルサーバーでの公開ができません。
自由度の高いVPSを使うのです。
VPS11社を比較し、おすすめをご紹介しています。
Webアプリの公開には、Ubuntuが搭載できるVPSを選びましょう。
Ubuntu環境が用意できたら、こちらのチュートリアルで公開方法を無料公開中。