Cannot read configuration file due to insufficient permissions' occurs when getting HTTP Error 500.19 - Worry-Free Business Security
![umbraco 722 http error 50019 internal server error iis not iis express - Installing umbraco - our.umbraco.com umbraco 722 http error 50019 internal server error iis not iis express - Installing umbraco - our.umbraco.com](https://our.umbraco.com/media/upload/1807324d-31a1-4222-a158-0ba1e3cedfb7/IISError.jpg)
umbraco 722 http error 50019 internal server error iis not iis express - Installing umbraco - our.umbraco.com
![An error occurred...500.19 - Internal Server Error ... 0x800700b7 ... There is a duplicate 'system.web.extensions/scripting/scriptResourceHandler' section defined" when launching Controller (10.2.1 or earlier) caused by using .NET 4.0 An error occurred...500.19 - Internal Server Error ... 0x800700b7 ... There is a duplicate 'system.web.extensions/scripting/scriptResourceHandler' section defined" when launching Controller (10.2.1 or earlier) caused by using .NET 4.0](https://www.ibm.com/support/pages/system/files/support/swg/cogtech.nsf/0/cb04a590891702a085257c5f003362a8/Symptom/3.486C.gif)
An error occurred...500.19 - Internal Server Error ... 0x800700b7 ... There is a duplicate 'system.web.extensions/scripting/scriptResourceHandler' section defined" when launching Controller (10.2.1 or earlier) caused by using .NET 4.0
![Getting HTTP Error 500.19 - Internal Server Error when trying to access old ASP classic web site on Windows 2016 Server - Microsoft Q&A Getting HTTP Error 500.19 - Internal Server Error when trying to access old ASP classic web site on Windows 2016 Server - Microsoft Q&A](https://docs.microsoft.com/answers/storage/attachments/99208-http-error.jpg)