Add Web service reference- Components required to enumerate web references not installed

The solution Close all open Visual Studio instances Open the Command prompt available with Visual Studio and type devenv /resetskippkgs (You can directly type this to Run command or normal command prompt) Add reference to the Web service/WCF service http://weblogs.asp.net/cabhilash/archive/2009/10/13/add-web-service-reference-components-required-to-enumerate-web-references-not-installed.aspx