cannot find class DataContractJsonSerializer .net 4.0

Question

I am trying to create an object of DataContractJsonSerialize

using System.Runtime.Serialization.Json; does not work, I am using .Net 4.0 I have added a referece to System.ServiceModel.Web, i also have using System.ServiceModel.Web; in my using statements.

everywhere i read said to adda reference to System.ServiceModel.Web.dll, but that did not fix it for me

Answer 1

According to MSDN, DataContractJsonSerializer is implemented in System.Runtime.Serialization.dll:

http://msdn.microsoft.com/en-us/library/system.runtime.serialization.json.datacontractjsonserializer.aspx

Make sure you have a reference to that assembly?