Got the 500.19 error in deploying a webapi project

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I followed the procedure in How to Deploy ASP.NET Core Web API on IIS Windows Server || Deploy ASP.NET Web API on IIS .NET 7.0 - YouTube[^]. The developed WebAPI project runs well in debugging, https://localhost:7193/swagger/index.html[^]
Then I tried to deploy it on IIS7.0. However, I got HTTP Error 500.19 - Internal Server Error: The requested page cannot be accessed because the related configuration data for the page is invalid.
How can this bug be resolved? Thanks.

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Got the 500.19 error in deploying a WebAPI project

Posted 5 days ago

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Pete O'Hanlon · Answer 1 · 2024-10-10T20:47:00

You resolve it by making the configuration data valid. I know that sounds like it's not answering your question, but as we don't actually know what your configuration looks like (we can't see it, and we're not going to watch a random Youtube video), then there's not a lot more that we can do.

If necessary, post a comment on the Youtube page and hope that you get a response there; or tell us what your configuration actually is. I'm not a big fan of Youtube tutorials unless I know that the person delivering it has a reputation for excellence (e.g. Scott Hanselman). There are far too many people posting crappy videos in the hopes of becoming the next "big thing".