The included URLconf 'appName.urls' does not appear to have any patterns in it
问题 Checking the documentation doesn't show any potential cause for the error. I have a django project with a number of apps (dir layout: ) settings.py (cryptoboard): ... # SECURITY WARNING: don't run with debug turned on in production! DEBUG = True ALLOWED_HOSTS = [] AUTH_USER_MODEL = "cryptousers.CryptoUser" # Application definition INSTALLED_APPS = [ 'django.contrib.admin', 'django.contrib.auth', 'django.contrib.contenttypes', 'django.contrib.sessions', 'django.contrib.messages', 'django