问 NoSuchElementException在游戏框架中发送电子邮件？

EN

下面，我已经粘贴了我的代码发送邮件与附加的文件。我不知道我在代码中遗漏了什么，但我在我的web应用程序中得到了一个 NoSuchElementException 。有人能说出我遗漏了什么吗?或者服务器部件有问题吗？我是否必须在我的代码项目中添加apache或任何服务器许可证。

下面是我的代码：

val email = Email(
  "Simple email",
  "Mister FROM <vignesh.gopal@hubino.com>",
  Seq("Miss TO <ibrahim.sultan@hubino.com>"),
  attachments = Seq(
    AttachmentFile("leak.txt", new File("E:/oui_mem_leak.txt")),
    AttachmentData("data.txt", "data".getBytes, "text/plain", Some("Simple data"), Some(EmailAttachment.INLINE))), 
  bodyText = Some("A text message"),
  bodyHtml = Some("<html><body><p>An <b>html</b> message</p></body></html>")
println("email contents: " + email)
MailerPlugin.send(email)

application.conf

smtp.host  = localhost
smtp.port  = 9000
smtp.ssl   = false
smtp.tls   = false
smtp.debug = false
smtp.mock  = false

build.sbt

  "org.apache.commons" % "commons-email" % "1.3.3",
  "com.typesafe.play" %% "play-mailer" % "2.4.1"

例外：

! @6nj6i1d36 - Internal server error, for (GET) [/stores/algo/file/download] ->
play.api.Application$$anon$1: Execution exception[[NoSuchElementException: None
get]]
        at play.api.Application$class.handleError(Application.scala:296) ~[play
2.11-2.3.9.jar:2.3.9]
        at play.api.DefaultApplication.handleError(Application.scala:402) [play
2.11-2.3.9.jar:2.3.9]
        at play.core.server.netty.PlayDefaultUpstreamHandler$$anonfun$14$$anonf
n$apply$1.applyOrElse(PlayDefaultUpstreamHandler.scala:205) [play_2.11-2.3.9.ja
:2.3.9]
        at play.core.server.netty.PlayDefaultUpstreamHandler$$anonfun$14$$anonf
n$apply$1.applyOrElse(PlayDefaultUpstreamHandler.scala:202) [play_2.11-2.3.9.ja
:2.3.9]
        at scala.runtime.AbstractPartialFunction.apply(AbstractPartialFunction.