HTPP Error 500.19 "Protocol Mapping" While hosting a WCF service in IIS

When you create a WCF service with VS 2013.And when you try to browse the .svc file it gives you the following error:

"The configuration section 'protocolMapping' cannot be read because it is missing a section declaration"

Error Summary

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	0x80070032
Config Error	The configuration section 'protocolMapping' cannot be read because it is missing a section declaration
Config File	\\?\C:\inetpub\wwwroot\test\web.config

Requested URL	http://localhost:11\test.svc
Physical Path
Logon Method	Not yet determined
Logon User	Not yet determined

Config Source

   25:     

26: 27:

Links and More Information

This error occurs when there is a problem reading the configuration file for the Web server or Web application. In some cases, the event logs may contain more information about what caused this error. View more information »


Solution: 
You need to ensure that the app Pool you are using for the IIS site is setup to use .net 4, because protocol mapping is only available in .net 4. By default it is set to V2.0

Hope this helps