After adding django-debug to App, getting "'djdt' is not a registered namespace"

My question is about setting up to use django-debug. I'm getting the above error after installing the toolbar and panel, and enabling these in my app. I've seen many suggestions for this or a closely related issue, and nothing I've tried has helped.

The specific error, during template rendering of /usr/lib/python3.6/site-packages/debug_toolbar/templates/debug_toolbar/base.html, is from:

16       data-render-panel-url="{% url 'djdt:render_panel' %}"

My relevant settings.py entries:

DEBUG = True
INSTALLED_APPS = [
    'debug_toolbar',
    'debug_panel',
    ...
]
MIDDLEWARE = [
    'debug_toolbar.middleware.DebugToolbarMiddleware',
    'debug_panel.middleware.DebugPanelMiddleware',
    ...
]
INTERNAL_IPS = ['127.0.0.1',]

Appended to my urls.py:

if settings.DEBUG:
    try:
        import debug_toolbar
        urlpatterns += [url(r'^__debug__/', include(debug_toolbar.urls))]
    except ImportError:
        pass

What I've tried:

• changing the order of these Middleware entries in settings.py (first, middle and last)
• adding a namespace attribute to my urlpatterns entry

Thanks for any further suggestions.

You need to manually add 'djdt' routes to the end of urls.py (if you use 'namespace' in your apps, add below codes to 'urls.py' in your project):

if settings.DEBUG:
    import debug_toolbar

    urlpatterns += [
        url(r'^__debug__/', include(debug_toolbar.urls)),
    ]

if this problem occurs when we set DEBUG to False then simply removing debugtoolbar middleware from the list fixed the problem.

• settings.py

MIDDLEWARE = [
    'debug_toolbar.middleware.DebugToolbarMiddleware',
    'django.middleware.security.SecurityMiddleware',
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.middleware.common.CommonMiddleware',
    'django.middleware.csrf.CsrfViewMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
    'django.middleware.clickjacking.XFrameOptionsMiddleware',
]

if DEBUG is False:
    del MIDDLEWARE[0]

• urls.py

from django.conf import settings
from django.conf.urls import include

...

if settings.DEBUG:
    import debug_toolbar
    urlpatterns = [
        path('__debug__/', include(debug_toolbar.urls)),
    ] + urlpatterns