我遇到了同样的问题，我通过使用 Win10 GUI 选择已安装的功能解决了这个问题.Internet 信息服务 ->万维网服务 ->应用程序开发功能->ASP.NET 4.6 未选中.与我需要的其他几个一起检查了，一切都很好.

I had the same problem and I solved it by using the Win10 GUI for selecting installed features. Internet Information Services -> World Wide Web Service -> Application Development Features->ASP.NET 4.6 was not checked. Checked that along with a few others I needed and all was good.