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When tried to create trace through Wizard by clicking Finish button getting 'Type 'System.String&' cannot be serialized.' error.


I am trying to create a WCF load test from within Visual studio. During creation of test I have tagged to a application and done the required execution steps. But when clicked on Finish, getting error message

Test generation error

Type 'System.String&' cannot be serialized. Consider marking it with the DataContractAttribute attribute, and marking all of its members you want serialized with the DataMemberAttribute attribute. See the Microsoft .NET Framework documentation for other supported types.