HTTP Error 500.19 - Internal Server Error

Error: HTTP Error 500.19 - Internal Server Error The requested page cannot be accessed because the related configuration data for the page is invalid.

Detailed Error Information: Module IIS Web Core Notification Unknown Handler Not yet determined Error Code 0x80070005 Config Error Cannot read configuration file due to insufficient permissions Config File \?\D:\Websites\TravelAgentFundUpload\Web\web.config

Solution: Your IIS doesn’t have permission to the project folder. Add the below user & allow the permission to your IIS project folder, IIS_IUSRS

Screenshot:

Add IIS_IUSRS