java.lang.NoSuchMethodError：scala.collection.immutable.StringLike.toString

Question

我正在尝试使用Scala解析Android上的json String

override def onCreate(savedInstanceState: Bundle): Unit = {
 super.onCreate(savedInstanceState)
 val jsonStr:String = Source.fromInputStream(getResources.openRawResource(R.raw.catalog)).mkString("")
 Log.i(TAG, jsonStr)
 val result = JSON.parseFull(jsonStr)
 result match {
   case Some(catalog) => Log.i(TAG, catalog.toString)
   case None => Toast.makeText(this, "cannot parse json", 2000).show();
 }
 setContentView(R.layout.activity_grid_view)

}

它编译得很好但是在android上执行时，它在JSON.parseFull上失败并带有运行时异常 java.lang.NoSuchMethodError：scala.collection.immutable.StringLike.toString

我正在使用scala 2.10.3

看起来像scala本身的错误