Cannot read configuration file due to insufficient permissions - HTTP Error 500.19 - Internal Server Error

Issue

After setting up the web App code on my local machine today, I got an error like “Cannot read configuration file due to insufficient permissions - HTTP Error 500.19 - Internal Server Error - The requested page cannot be accessed because the related configuration data for the page is invalid."

Fig 1: Web App Error - Cannot read configuration file due to insufficient permissions

Resolution:

It resolved when we add read access to IIS_IUSRS group on web app folder.

Also, make sure iis features are on under “Application Development feature” from “Turn Windows Features on or Off”

Fig 2: Set Read access to IIS_IUSRS on Web App folder

References:

https://stackoverflow.com/questions/18620654/500-19-internal-server-error-the-requested-page-cannot-be-accessed-because-t