Amazon MWS Request Report API

I used Amazon MWS Request Report API to request report but the response returned from API is

Service Response

    GetReportRequestListResponse
        GetReportRequestListResult
            NextToken
                string
            HasNext

            ReportRequestInfo
                ReportRequestId
                    string
                ReportType
                    string
                StartDate

in above results there is no values only the value types are there I download client library from http://ift.tt/1G1OYjA

any ideas?