Why do I get error message ‘Failed to Start Monitoring Directory Changes’ when i try to browse ASP.NET page

1. The ASPNET worker process doesn’t have ‘Read & Execute’, ‘ List Folder Contents’, ‘ Read permissions’ permissions to detect file changes in Web.Config, Machine.config, Bin files, or Cache dependency files.
2. Or one of the directory names in the hierarchy of that file path is greater than eight characters long.

For more information refer

• PRB: ‘Failed to Start Monitoring Directory Changes’ Error Message When You Browse to ASP.NET Page
• FIX: ‘Failed to start monitoring directory changes’ error message when you browse to an ASP.NET page