Hello:

I follow the help document of "Adding Chart to a Form"(http://help.infragistics.com/Help/NetAdvantage/ASPNET/2012.1/CLR4.0/html/Chart_Adding_Chart_to_a_Form.html) online, but when I complier, Error List shown
"Type 'Infragistics.WebUI.Shared.IUltraLicensedComponent' Is defined without reference to the component. You must add a reference to the component 'Infragistics4.WebUI.Shared.v12.1, Version=12.1.20121.2072, Culture=neutral, PublicKeyToken=7dd5c3163f2cd0cb'"

How can I do?

Thank you.