运行命令:./gradlew clean assembleDebug
Exception in thread "main" java.lang.NullPointerException: Couldn't find outer class xxxxx/SomeClass$someMethod$1$1$2 of xxxx/SomeClass$someMethod$1$1$2$1
execution failed for task ':app:transformClassesWithDesugarForDevDebug'.
这些问题均与Android Studio 3.1 Beta 1有关。请参考以上链接以了解更多信息。