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c# - HTTP Error 502.5 - ANCM Out-Of-Process Startup Failure after upgrading to ASP.NET Core 2.2

After upgrading my project to ASP.NET Core 2.2, I tried to run the application (locally of course) and the browser displayed an error message like in the below screenshot.

enter image description here

no more errors notified by visual studio error explorer. I don't know what's happen.

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In my case, I upgraded some nuget packages to net core 2.2, but I did not have the net core 2.2 sdk installed, so I went to net core website to download the latest sdk or runtime package, and then I did a net stop was /y and then a net start w3svc in the CMD as administrator. Problem solved for me.


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