I am trying to publish ASP.NET Core MVC web app to Windows Server 2019, using IIS. I am using a very basic web app for testing.

When I try to browse the site from IIS Manager, I get this error:

HTTP Error 500.19 – Internal Server Error

The requested page cannot be accessed because the related > configuration data for the page is invalid

Error Code 0x8007000d
Config File ?C:GcTestweb.config

I suspect one of these three problems, but don’t know how to solve them:

1. Maybe the config file path \?C:GcTestweb.config is not valid

2. I installed ASP.NET 4.8, when I browse the Roles and Features in the Server Manager, I only get ASP.NET 4.7:

3. In IIS, Sites->Default Web Site -> Modules, AspNetCoreModuleV2 is missing.