'ASP.NET Core 5 error “An error occurred while processing your request”

I have published my site made in ASP.NET Core 5 (Visual Studio) in a local folder and I registered it in the Administrator (IIS) I also changed the permissions for the IIS_IUSRS user, however it triggers the following error:

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Why this error?

Compiled site:

https://drive.google.com/drive/u/1/folders/1Y-lgQbmjHJa3J5SSx4uIlQsgL-xHKD3Q

c++sharpiisasp.net-core-mvcvisual-studio-2019


Solution 1:[1]

  1. I Have solved this problem after causing me sleepless nights for a month. Go to the folder which you have published your project and look for a folder called Logs

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  1. Open the logs folder and check for the following Error, its complaining of appool not added in your respective database

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  1. open your SQL server database expend security and right click Logins and select new login.

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  1. Enter the Name of the appool that the error on logs is showing and click OK

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  1. Go to the login appool that you have just added and right click and choose properties which will open a new window the select user mappings

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  1. check your database and two permissions db_datareader and db_datawriter and click ok. Now your application should be working like magic!

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution Source
Solution 1 Suraj Rao

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