[Help]Wierd error message

Private Sub Emaillocation()
        Dim Target As String
        Target = "http:/**********/*****/Target.txt"
        Dim request As System.Net.HttpWebRequest = System.Net.HttpWebRequest.Create(Target)
        Dim response As System.Net.HttpWebResponse = request.GetResponse()
        Dim sr As System.IO.StreamReader = New System.IO.StreamReader(response.GetResponseStream(), System.Text.Encoding.GetEncoding("windows-1252"))
        Dim Targettxt As String
        Targettxt = sr.ReadToEnd()
        TargetX.Text = Targettxt
      Call email()
    End Sub

Private Sub email()
        Dim AnEmailMessage As New MailMessage
        AnEmailMessage.From = New MailAddress("************@gmail.com")
        AnEmailMessage.To.Add(TargetX.Text) 'ERROR HERE
        AnEmailMessage.Subject = ("**************")
        AnEmailMessage.Body = ("*****************************")
        Dim SimpleSMTP As New SmtpClient("smtp.gmail.com")
        SimpleSMTP.Port = 587
        SimpleSMTP.EnableSsl = True
        SimpleSMTP.Credentials = New System.Net.NetworkCredential("**************@gmail.com", "******")
        SimpleSMTP.Send(AnEmailMessage)
    End Sub

System.Text.Encoding.GetEncoding("windows-1252")