I\'m deploying a asp.net core 2.0 website to IIS 10.
I\'ve made sure that my app is using the correct configuration for ISS in the program.settings file.
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I fixed this issue on my inhouse windowsserver with this solution
* go to netcore https://github.com/dotnet/core/tree/master/release-notes
* go to the lastest version of the core runtime 2.?
* download DotNetCore.2.0.6-WindowsHosting.exe in my case
https://github.com/dotnet/core/blob/master/release-notes/download-archives/2.0.6-download.md#net-core-runtime-only-installation
Install this on server and the error was solved for me. Hope this helps anyone.