从模板创建项目时遇到奇怪的异常-完全让我感到惊讶

Question

我创建了一个模板项目。 当尝试使用g8 https://github.com/....git从该模板创建项目时

文件：/var/folders/gy/22hljh894bdcrl35t9mz9c5h0000gp/T/giter8-22519068778300/src/main/g8/src/main/scala/$package$/service/UserRegistryActor.scala，31：53：“创建”作为一个完整的文件给我一个惊喜

从这段代码

class UserRegistryActor extends Actor with ActorLogging {
  import UserRegistryActor._

  var users = Set.empty[User]

  def receive: Receive = {
    case GetUsers =>
      sender() ! Users(users.toSeq)
    case CreateUser(user) =>
      users += user
      sender() ! ActionPerformed(s"User ${user.name} created.")

    case GetUser(name) =>
      sender() ! users.find(_.name == name)
    case DeleteUser(name) =>
      users.find(_.name == name) foreach { user => users -= user }
      sender() ! ActionPerformed(s"User $name deleted.")
  }
} 

为什么会这样呢？