Proguard警告：找不到引用的類scala。*

Question

升級到新的Android工具后，我收到了來自Proguard的警告：

Warning: scala.xml.EntityRef: can't find referenced class scala.xml.EntityRef$$anonfun$text$1
Warning: scala.xml.dtd.AttrDecl$: can't find referenced class scala.xml.dtd.AttrDecl$$anonfun$toString$1
Warning: scala.collection.mutable.LinkedListLike: can't find referenced class scala.collection.mutable.LinkedListLike$$anonfun$insert$1
Warning: scala.xml.NamespaceBinding: can't find referenced class scala.xml.NamespaceBinding$$anonfun$toString$1
Warning: scala.xml.NamespaceBinding: can't find referenced class scala.xml.NamespaceBinding$$anonfun$buildString$1
Warning: scala.xml.MetaData$: can't find referenced class scala.xml.MetaData$$anonfun$toString$1
Warning: scala.xml.MetaData$: can't find referenced class scala.xml.MetaData$$anonfun$toString1$1
Warning: scala.collection.immutable.BitSet: can't find referenced class scala.collection.immutable.BitSet$$anonfun$$plus$1
Warning: scala.collection.immutable.BitSet: can't find referenced class scala.collection.immutable.BitSet$$anonfun$$minus$1
Warning: scala.collection.mutable.FlatHashTable$$anonfun$checkConsistent$1: can't find referenced class scala.collection.mutable.FlatHashTable$$anonfun$checkConsistent$1$$anonfun$apply$mcVI$sp$1
Warning: scala.collection.immutable.RedBlack: can't find referenced class scala.collection.immutable.RedBlack$Empty
Warning: scala.collection.immutable.BitSet$: can't find referenced class scala.collection.immutable.BitSet$$anonfun$$plus$1
Warning: scala.collection.immutable.BitSet$: can't find referenced class scala.collection.immutable.BitSet$$anonfun$$minus$1
Warning: scala.xml.EntityRef$: can't find referenced class scala.xml.EntityRef$$anonfun$text$1
Warning: scala.Either: can't find referenced class scala.Either$$anonfun$joinLeft$1
... (more) ...

有沒有提示為什么Proguard找不到這些課程？ 我怎樣才能解決這個問題？

Answer 1

如果從scala-library.jar（版本2.9.1）查看列出的類的內部，您將看到它們引用了根本不存在的類。 對我來說，它看起來像編譯器問題。 引用不是處理和運行代碼的基礎，因此您可以讓ProGuard接受帶有此選項的jar：

-dontwarn scala.**

Answer 2

你是怎么建的？ 用Ant？ SBT？ Maven的？ 你從哪里開始設置你的設置？

假設您正在使用Ant和http://lamp.epfl.ch/~michelou/android/中描述的設置，那么您是否已將build-scala.xml和proguard模板更新為最近檢查過的那些以支持最新的Android SDK？