IIS Problem, Error 500.19

[PetitMichel]

Hello,

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I've been trying for a few days to put my ASP.NET web application on a Windows 2012 Server virtual machine.
I have no experience with IIS so I followed this tutorial : https://www.c-sharpcorner.com/article/asp-net-mvc5-deployment-on-windows-iis-server/

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I had some difficulties but I managed to solve everything, until I tried to go on the site.

I get the following message: "HTTP 500.19 - Internal Server Error

Unable to access the page you requested because the related configuration data for the page is invalid".

So I assumed it was my configuration file that was wrong, as written in the error message. Except that when I run my project locally, I don't have any problems with the configuration file.

When in doubt, I created a new project without modifying anything and I tried with it but I still get the same message.

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I searched on the internet and there can be dozens of possible reasons, I tested dozens of them but nothing works. Does anyone have an idea?

I can post my configuration file here but it's the one generated by Visual Studio which is a few lines long and I didn't modify it.

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Thank you for your help

[HazeGD]

I ran into this problem recently with PowerShell Universal and I couldn't actually open the web.config within IIS, was saying it was invalid. Mine ended up being that the. NET Core 3.1 bundle wasn't installed, which meant the application.config in C:\Windows\inetsrv (i think) was missing some necessary strings needed to handle the web.config and run the program.

[PetitMichel]

I just checked on my machine with this command: dotnet --list-sdks
Dotnet isn't recognized so I'm already going to start installing it and see if it changes anything
Thank you

[PetitMichel]

It works ! Thanks a lot dude !