Django runserverでのE.408、E.409およびE.410エラー

Question

私は新しい通常の方法でDjangoプロジェクトをvirtualenvを使用してインストールしています。私のバージョンPythonは3.7.3であり、Djangoは2.2.3です。

python manage.py runserverを実行すると、次のエラーが発生します。

?: (admin.E408)'Django.contrib.auth.middleware.AuthenticationMiddleware' must be in MIDDLEWARE in order to use the admin application.
?: (admin.E409) 'Django.contrib.messages.middleware.MessageMiddleware' must be in MIDDLEWARE in order to use the admin application.
?: (admin.E410) 'Django.contrib.sessions.middleware.SessionMiddleware' must be in MIDDLEWARE in order to use the admin application.

ここに私のsettings.pyがあり、それらのミドルウェアがそこにあることがわかります。

"""
Django settings for fcc_new project.

Generated by 'Django-admin startproject' using Django 1.9.4.

For more information on this file, see
https://docs.djangoproject.com/en/1.9/topics/settings/

For the full list of settings and their values, see
https://docs.djangoproject.com/en/1.9/ref/settings/
"""

import os

# Build paths inside the project like this: os.path.join(BASE_DIR, ...)
BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))


# Quick-start development settings - unsuitable for production
# See https://docs.djangoproject.com/en/1.9/howto/deployment/checklist/

# SECURITY WARNING: keep the secret key used in production secret!
SECRET_KEY = MY KEY goes here

# SECURITY WARNING: don't run with debug turned on in production!
DEBUG = True

ALLOWED_HOSTS = []


# Application definition

INSTALLED_APPS = [
    'Django.contrib.admin',
    'Django.contrib.auth',
    'Django.contrib.contenttypes',
    'Django.contrib.sessions',
    'Django.contrib.messages',
    'Django.contrib.staticfiles',
]

MIDDLEWARE_CLASSES = [
    'Django.middleware.security.SecurityMiddleware',
    'Django.contrib.sessions.middleware.SessionMiddleware',
    'Django.middleware.common.CommonMiddleware',
    'Django.middleware.csrf.CsrfViewMiddleware',
    'Django.contrib.auth.middleware.AuthenticationMiddleware',
    'Django.contrib.auth.middleware.SessionAuthenticationMiddleware',
    'Django.contrib.messages.middleware.MessageMiddleware',
    'Django.middleware.clickjacking.XFrameOptionsMiddleware',
]

ROOT_URLCONF = 'fcc_new.urls'

TEMPLATES = [
    {
        'BACKEND': 'Django.template.backends.Django.DjangoTemplates',
        'DIRS': [],
        'APP_DIRS': True,
        'OPTIONS': {
            'context_processors': [
                'Django.template.context_processors.debug',
                'Django.template.context_processors.request',
                'Django.contrib.auth.context_processors.auth',
                'Django.contrib.messages.context_processors.messages',
            ],
        },
    },
]

WSGI_APPLICATION = 'fcc_new.wsgi.application'


# Database
# https://docs.djangoproject.com/en/1.9/ref/settings/#databases

DATABASES = {
    'default': {
        'ENGINE': 'Django.db.backends.sqlite3',
        'NAME': os.path.join(BASE_DIR, 'db.sqlite3'),
    }
}


# Password validation
# https://docs.djangoproject.com/en/1.9/ref/settings/#auth-password-validators

AUTH_PASSWORD_VALIDATORS = [
    {
        'NAME': 'Django.contrib.auth.password_validation.UserAttributeSimilarityValidator',
    },
    {
        'NAME': 'Django.contrib.auth.password_validation.MinimumLengthValidator',
    },
    {
        'NAME': 'Django.contrib.auth.password_validation.CommonPasswordValidator',
    },
    {
        'NAME': 'Django.contrib.auth.password_validation.NumericPasswordValidator',
    },
]


# Internationalization
# https://docs.djangoproject.com/en/1.9/topics/i18n/

LANGUAGE_CODE = 'en-us'

TIME_ZONE = 'UTC'

USE_I18N = True

USE_L10N = True

USE_TZ = True


# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/1.9/howto/static-files/

STATIC_URL = '/static/'

再インストールしてバージョンを確認し、「MIDDLEWARE_CLASSES」を「MIDDLEWARE」に変更してみました。何も機能していません。誰でも問題を特定できますか？

Answer 1

Picが示すようにsetting.pyを変更 Change setting.py

# MIDDLEWARE_CLASSES = [
MIDDLEWARE = [
    'Django.middleware.security.SecurityMiddleware',
    'Django.contrib.sessions.middleware.SessionMiddleware',
    'Django.middleware.common.CommonMiddleware',
    'Django.middleware.csrf.CsrfViewMiddleware',
    'Django.contrib.auth.middleware.AuthenticationMiddleware',
    # 'Django.contrib.auth.middleware.SessionAuthenticationMiddleware',
    'Django.contrib.messages.middleware.MessageMiddleware',
    'Django.middleware.clickjacking.XFrameOptionsMiddleware',
]

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