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我正在尝试创建一个针对masspay 的虚拟请求并且遇到了麻烦。masspay正在崩溃并返回这个。

com.paypal.sdk.exceptions.TransactionException：底层连接已关闭：接收时发生意外错误。---> System.Reflection.TargetInvocationException：调用的目标已抛出异常。---> System.Net.WebException：底层连接已关闭：接收时发生意外错误。---> System.IO.IOException: Unable to read data from the transport connection: 一个现有的连接被远程主机强行关闭。---> System.Net.Sockets.SocketException: 远程主机在 System.Net.Sockets.NetworkStream.Read(Byte[] buffer, Int32 offset, Int32 size) 处强制关闭现有连接 --- End of inner异常堆栈跟踪---在 System.Net.FixedSizeReader 的 System.Net.Sockets.NetworkStream.Read(Byte[] 缓冲区，Int32 偏移量，Int32 大小)。

这是我的代码的样子。有人可以告诉我我做错了什么： Dim MassPayReqItem As New MassPayRequestItemType MassPayReqItem.Amount = New BasicAmountType MassPayReqItem.Amount.currencyID = CurrencyCodeType.USD MassPayReqItem.Amount.Value = 15.0 MassPayReqItem.Note = "test mass payment" MassPayReqItem.ReceiverEmail =“用户@email.com”

    Dim MassPayReqItem1 As New MassPayRequestItemType
    MassPayReqItem1.Amount = New BasicAmountType
    MassPayReqItem1.Amount.currencyID = CurrencyCodeType.USD
    MassPayReqItem1.Amount.Value = 5.0
    MassPayReqItem1.Note = "test mass payment1"
    MassPayReqItem1.ReceiverEmail = "user1@email.com"


    Dim massPayItemsArray(1) As MassPayRequestItemType
    massPayItemsArray.SetValue(MassPayReqItem, 0)
    massPayItemsArray.SetValue(MassPayReqItem1, 1)


    Dim MassPayReqType As New MassPayRequestType
    MassPayReqType.MassPayItem = massPayItemsArray
    MassPayReqType.Version = "51.0"
    MassPayReqType.EmailSubject = "Mass Payment from  from me " _
    & Date.Now.ToLongTimeString


    Dim profile As IAPIProfile = ProfileFactory.createSignatureAPIProfile()



    Dim caller As New com.paypal.sdk.services.CallerServices()

    profile.APIUsername = "fsadsfdafsdasfad1.gmail.com"
    profile.APIPassword = "fafsdafafaddsaf"
    profile.APISignature = "Alq1UN0gL5pSkR-311R7KRCKujzNfdsaasgasgsagsagcOvcvz-hn5Rd"

    caller.APIProfile = profile

    Try
        'send request, return response

        Dim MPRes As New MassPayResponseType
        MPRes = DirectCast(caller.[Call]("MassPay", MassPayReqType), MassPayResponseType)



        Select Case MPRes.Ack

            Case AckCodeType.Success

                Response.Write("API response: <b>" & MPRes.Ack.ToString _
                & "</b><br> Timestamp: <b>" & MPRes.Timestamp.ToLongTimeString _
                & "</b><br> Version: <b>" & MPRes.Version.ToString)

            Case Else
                Response.Write("API response: <b>" & MPRes.Ack.ToString _
                & "</b><br> Timestamp: <b>" & MPRes.Timestamp.ToLongTimeString _
                & "</b><br> Version: <b>" & MPRes.Version.ToString _
                & "</b><br> Error code: <b>" & MPRes.Errors(0).ErrorCode _
                & "</b><br> Short error: <b>" & MPRes.Errors(0).ShortMessage _
                & "</b><br> Long error: <b>" & MPRes.Errors(0).LongMessage)

        End Select

    Catch ex As Exception

        Response.Write(ex.ToString)

    End Try
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