Error: could not find implicit value for parameter e: scala.pickling.FastTypeTag

[invkrh]

When testing pickling-0.8 with case class serialization, I got an error:

Error: could not find implicit value for parameter e: scala.pickling.FastTypeTag[Person]

I managed to do some workaround to get rid of it, but I am not sure it's a wanted feature.
Here are two code snippets will help to reproduce the error:

Snippet 1:

object Test extends App {
    import scala.pickling._
    import json._
    case class Person(name: String, age: Int) // case class defined out of func test()
    def test() = {
        val res = Person("Hao", 10).pickle.value
        println(res)
    }
    test
}

This code is good and resulted in :

{
  "tpe": "Test.Person",
  "name": "Hao",
  "age": 10
}

Snippet 2:

object Test extends App {
    import scala.pickling._
    import json._
    def test() = {
        case class Person(name: String, age: Int) // case class defined in func test
        val res = Person("Hao", 10).pickle.value
        println(res)
    }
    test
}

This code resulted in an error:

[error] /home/invoker/workspace/scalacode/sbt-example-pickling/Test.scala:7: could not find implicit value for parameter e: scala.pickling.FastTypeTag[Person]
[error]         val res = Person("Hao", 10).pickle.value
[error]                                     ^
[error] one error found

I can not understand why the position of case class definition matters. At compile time, the implicit parameter value is erased ? Does it do with the scala Macro feature ? Could someone show me any deep insights ? Highly appreciate that.

Hao

[invkrh]

Is this fixed ? Any insight here ?

[eed3si9n]

After changing to import scala.pickling._, Defaults._ both cases works for me using Pickling 0.10.0.