Django Postman实现，用于发送消息

Question

我正在尝试使用该Django-Postman框架在中的用户之间发送消息Django 2.0。我已经安装了应用程序，并做了必要的更改，如框架文档中所述。

但是，当我尝试转到消息URL时，我得到了一个空白页（如此屏幕截图）：

到目前为止，这是我所做的：

已安装 django-postman

在 settings.py

INSTALLED_APPS = [

    'django.contrib.admin',

    'django.contrib.auth',

    'django.contrib.contenttypes',

    'django.contrib.sessions',

    'django.contrib.messages',

    'django.contrib.staticfiles',

    'postman',

    'account',

    'cart',

    'shop',

    'landingpage',

]

POSTMAN_I18N_URLS = True  # default is False

POSTMAN_DISALLOW_ANONYMOUS = True  # default is False

POSTMAN_DISALLOW_MULTIRECIPIENTS = True  # default is False

POSTMAN_DISALLOW_COPIES_ON_REPLY = True  # default is False

POSTMAN_DISABLE_USER_EMAILING = True  # default is False

POSTMAN_FROM_EMAIL = '[e-mail]'  # default is DEFAULT_FROM_EMAIL

POSTMAN_AUTO_MODERATE_AS = True  # default is None

POSTMAN_SHOW_USER_AS = 'get_full_name'  # default is None

POSTMAN_NAME_USER_AS = 'last_name'  # default is None

POSTMAN_QUICKREPLY_QUOTE_BODY = True  # default is False

POSTMAN_NOTIFIER_APP = None  # default is 'notification'

POSTMAN_MAILER_APP = None  # default is 'mailer'

我已经以这种方式链接了网址 urls.py

url(r'^messages/', include('postman.urls', namespace='postman')),

我怎么解决这个问题？