静态css文件未在django中加载

Question

帮助解决404错误：

--project
----templates
----project
------urls.py
------settigns.py
----app
----static
------css
------js
------images
--media
--static (after collectstatic command)

图像和js文件加载良好但不加载css文件。我不知道为什么。

我的项目结构：

BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
STATIC_URL = '/static/'
STATICFILES_DIRS = [
    os.path.join(BASE_DIR, "static"),
]

STATIC_ROOT = os.path.join(os.path.dirname(BASE_DIR), "static")

Settigns.py包含'django.contrib.staticfiles'

settings.py

if settings.DEBUG:
    urlpatterns += static(settings.STATIC_URL, document_root=settings.STATIC_ROOT)
    urlpatterns += static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)

urls.py

{% load staticfiles %}

<link rel="stylesheet" type="text/css" href="{% static 'css/design.css' %}"/>
<img src="{% static 'images/slide1.jpg' %}">

base.html文件

this.service.doRefresh();