This configuration section cannot be used at this path

This configuration section cannot be used at this path. This happens when the section is locked at a parent level. Locking is either by default (overrideModeDefault="Deny"), or set explicitly by a location tag with overrideMode="Deny" or the legacy allowOverride="false".

如下图在在服务器角色中把Web服务器下的应用程序开发及下面的相关项勾选进行安装，安装后重启一下服务器，就解决这个问题了。