问题：win系统下，python 3+、Django 2.0.3环境，在Django运行时报错，信息如下：
Unhandled exception in thread started by .wrapper at 0x000002203F3FEC80>
Traceback (most recent call last):
File "C:\Program Files\Python\Python36\lib\site-packages\django\utils\autoreload.py", line 225, in wrapper
fn(*args, **kwargs)
File "C:\Program Files\Python\Python36\lib\site-packages\django\core\management\commands\runserver.py", line 120, in inner_run
self.check(display_num_errors=True)
File "C:\Program Files\Python\Python36\lib\site-packages\django\core\management\base.py", line 410, in check
raise SystemCheckError(msg)
django.core.management.base.SystemCheckError: SystemCheckError: System check identified some issues:
ERRORS:
?: (staticfiles.E001) The STATICFILES_DIRS setting is not a tuple or list.
HINT: Perhaps you forgot a trailing comma?
System check identified 1 issue (0 silenced).
答案：在settings.py中配置静态文件路径时没有在结尾加逗号
