将地址添加到AWS Simple Email Service时，对象引用未设置为对象的实例

问题描述

例外：

system.NullReferenceException

错误行：sendRequest.Destination.ToAddresses.Add（addresses（0））

代码：

Sub Test_SES(subject As String,source As String)
    Using client = New Amazon.SimpleEmail.AmazonSimpleEmailServiceClient(Amazon.RegionEndpoint.EUWest1)
        Dim sendRequest As New Amazon.SimpleEmail.Model.SendEmailRequest With {.source = source}
        Dim addresses As String() = address.Text.Split(Environment.NewLine)
        For i = 0 To addresses.Length - 1
            sendRequest.Destination.ToAddresses.Add(addresses(0))

        Next
        sendRequest.Message = New Amazon.SimpleEmail.Model.Message With
        {
            .Subject = New Amazon.SimpleEmail.Model.Content(subject),.Body = New Amazon.SimpleEmail.Model.Body() With
            {
            .Html = New Amazon.SimpleEmail.Model.Content() With
            {
            .Charset = "UTF-8",.Data = My.Resources.EmailHTML
            }
            }
        }
        Try
            Dim response = client.SendEmail(sendRequest)
        Catch ex As Exception
            FormConsole.Text = FormConsole.Text & Environment.NewLine & "[" & Date.Now.TimeOfDay.ToString & "]" & "Mail not sent" & ex.Message
        End Try
    End Using
End Sub

发生了什么，我该如何解决？

以为我已经拥有了我不知道如何引用实例

解决方法

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