好，我终于在网上找到了解决方案:首先要做的是:pip卸载whitenoise然后做:pip安装"whitenoise< 4"

Ok, I finally found the solution online: first do: pip uninstall whitenoise then do: pip install "whitenoise<4"

还要感谢所有在此帖子上发表建议的人.

Also, appreciate everyone who posted suggestion on this post.