Android Studio 3.0.0-beta1 - NoClassDefFoundError

Question

Android Studioをv3.0.0-beta1にアップグレードし、クラスパスを'com.android.tools.build:gradle:3.0.0-beta1'に変更すると、rxjava/retrofitコードがエラーをスローするたびに次のエラーが表示されます（401 HttpExceptionこの例では）。

java.lang.IllegalStateException: Fatal Exception thrown on Scheduler.Worker thread. 
    at rx.android.schedulers.LooperScheduler$ScheduledAction.run(LooperScheduler.java:114) 
    at android.os.Handler.handleCallback(Handler.java:746) 
    at android.os.Handler.dispatchMessage(Handler.java:95) 
    at android.os.Looper.loop(Looper.java:148) 
    at android.app.ActivityThread.main(ActivityThread.java:5443) 
    at java.lang.reflect.Method.invoke(Native Method) 
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:728) 
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618) 
    Caused by: rx.exceptions.OnErrorFailedException: Error occurred when trying to propagate error to Observer.onError 
    at rx.observers.SafeSubscriber._onError(SafeSubscriber.java:187) 
    at rx.observers.SafeSubscriber.onError(SafeSubscriber.java:115) 
    at rx.internal.operators.OperatorObserveOn$ObserveOnSubscriber.checkTerminated(OperatorObserveOn.java:273) 
    at rx.internal.operators.OperatorObserveOn$ObserveOnSubscriber.call(OperatorObserveOn.java:216) 
    at rx.android.schedulers.LooperScheduler$ScheduledAction.run(LooperScheduler.java:107) 
    at android.os.Handler.handleCallback(Handler.java:746)  
    at android.os.Handler.dispatchMessage(Handler.java:95)  
    at android.os.Looper.loop(Looper.java:148)  
    at android.app.ActivityThread.main(ActivityThread.java:5443)  
    at java.lang.reflect.Method.invoke(Native Method)  
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:728)  
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)  
    Caused by: rx.exceptions.CompositeException: 2 exceptions occurred. 
    at rx.observers.SafeSubscriber._onError(SafeSubscriber.java:187)  
    at rx.observers.SafeSubscriber.onError(SafeSubscriber.java:115)  
    at rx.internal.operators.OperatorObserveOn$ObserveOnSubscriber.checkTerminated(OperatorObserveOn.java:273)  
    at rx.internal.operators.OperatorObserveOn$ObserveOnSubscriber.call(OperatorObserveOn.java:216)  
    at rx.android.schedulers.LooperScheduler$ScheduledAction.run(LooperScheduler.java:107)  
    at android.os.Handler.handleCallback(Handler.java:746)  
    at android.os.Handler.dispatchMessage(Handler.java:95)  
    at android.os.Looper.loop(Looper.java:148)  
    at android.app.ActivityThread.main(ActivityThread.java:5443)  
    at java.lang.reflect.Method.invoke(Native Method)  
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:728)  
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)  
    Caused by: rx.exceptions.CompositeException$CompositeExceptionCausalChain: Chain of Causes for CompositeException In Order Received => 
    at android.util.Log.getStackTraceString(Log.java:522) 
    at com.android.internal.os.RuntimeInit.Clog_e(RuntimeInit.java:61) 
    at com.android.internal.os.RuntimeInit.-wrap0(RuntimeInit.java) 
    at com.android.internal.os.RuntimeInit$UncaughtHandler.uncaughtException(RuntimeInit.java:86) 
    at java.lang.ThreadGroup.uncaughtException(ThreadGroup.java:693) 
    at java.lang.ThreadGroup.uncaughtException(ThreadGroup.java:690) 
    at rx.android.schedulers.LooperScheduler$ScheduledAction.run(LooperScheduler.java:118) 
    at android.os.Handler.handleCallback(Handler.java:746)  
    at android.os.Handler.dispatchMessage(Handler.java:95)  
    at android.os.Looper.loop(Looper.java:148)  
    at android.app.ActivityThread.main(ActivityThread.java:5443)  
    at java.lang.reflect.Method.invoke(Native Method)  
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:728)  
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)  
    Caused by: retrofit2.adapter.rxjava.HttpException: HTTP 401 Unauthorized 
    at retrofit2.adapter.rxjava.OperatorMapResponseToBodyOrError$1.onNext(OperatorMapResponseToBodyOrError.java:43) 
    at retrofit2.adapter.rxjava.OperatorMapResponseToBodyOrError$1.onNext(OperatorMapResponseToBodyOrError.java:38) 
    at retrofit2.adapter.rxjava.RxJavaCallAdapterFactory$RequestArbiter.request(RxJavaCallAdapterFactory.java:173) 
    at rx.internal.operators.OperatorSubscribeOn$SubscribeOnSubscriber$1.request(OperatorSubscribeOn.java:109) 
    at rx.Subscriber.setProducer(Subscriber.java:211) 
    at rx.internal.operators.OperatorSubscribeOn$SubscribeOnSubscriber.setProducer(OperatorSubscribeOn.java:105) 
    at rx.Subscriber.setProducer(Subscriber.java:205) 
    at retrofit2.adapter.rxjava.RxJavaCallAdapterFactory$CallOnSubscribe.call(RxJavaCallAdapterFactory.java:152) 
    at retrofit2.adapter.rxjava.RxJavaCallAdapterFactory$CallOnSubscribe.call(RxJavaCallAdapterFactory.java:138) 
    at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:48) 
    at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:30) 
    at rx.Observable.unsafeSubscribe(Observable.java:10346) 
    at rx.internal.operators.OperatorSubscribeOn$SubscribeOnSubscriber.call(OperatorSubscribeOn.java:100) 
    at rx.internal.schedulers.CachedThreadScheduler$EventLoopWorker$1.call(CachedThreadScheduler.java:230) 
    at rx.internal.schedulers.ScheduledAction.run(ScheduledAction.java:55) 
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:423) 
    at java.util.concurrent.FutureTask.run(FutureTask.java:237) 
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:269) 
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113) 
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588) 
    at java.lang.Thread.run(Thread.java:818) 
    Caused by: java.lang.NoClassDefFoundError: Failed resolution of: Lcom/google/devtools/build/android/desugar/runtime/ThrowableExtension; 

• すべてのエラーハンドラはRxJava呼び出しに適切に設定されています。
• のAndroid SDKこの問題は、Googleによって対処し、Beta 2 updateで修正されたインスタント・ラン

Answer 1

を無効にしようとしたなど

を再構築し、ツールv26.0.1クリーンしようとしました

を構築します。

Friday, August 11, 2017

Android Studio 3.0 Beta 2 is now available in the Canary and Dev channels. This release fixes an issue which resulted in the compiler throwing a ClassNotFoundException when you enable Java 8 language features and specify minSdkVersion 19 or higher—this also caused some code analysis tools, such as ProGuard, to fail. For more information, see issue #64527520.