ビルドに失敗しました：transformClassesAndResourcesWithProguardForRelease

Question

私は最近アンドロイドスタジオをバージョン2.3にアップデートし、ツールを25.0.2、gradle 2.3.0、gradle distribution 3.3にビルドしました。古いバージョンではこの問題は起こりませんでした。

* Exception is: 
org.gradle.api.tasks.TaskExecutionException: Execution failed for task ':app:transformClassesAndResourcesWithProguardForRelease'. 
     at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:84) 
     at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute(ExecuteActionsTaskExecuter.java:55) 
     at org.gradle.api.internal.tasks.execution.SkipUpToDateTaskExecuter.execute(SkipUpToDateTaskExecuter.java:62) 
     at org.gradle.api.internal.tasks.execution.ValidatingTaskExecuter.execute(ValidatingTaskExecuter.java:58) 
     at org.gradle.api.internal.tasks.execution.SkipEmptySourceFilesTaskExecuter.execute(SkipEmptySourceFilesTaskExecuter.java:88) 
     at org.gradle.api.internal.tasks.execution.ResolveTaskArtifactStateTaskExecuter.execute(ResolveTaskArtifactStateTaskExecuter.java:46) 
     at org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter.execute(SkipTaskWithNoActionsExecuter.java:51) 
     at org.gradle.api.internal.tasks.execution.SkipOnlyIfTaskExecuter.execute(SkipOnlyIfTaskExecuter.java:54) 
     at org.gradle.api.internal.tasks.execution.ExecuteAtMostOnceTaskExecuter.execute(ExecuteAtMostOnceTaskExecuter.java:43) 
     at org.gradle.api.internal.tasks.execution.CatchExceptionTaskExecuter.execute(CatchExceptionTaskExecuter.java:34) 
     at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker$1.execute(DefaultTaskGraphExecuter.java:236) 
     at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker$1.execute(DefaultTaskGraphExecuter.java:228) 
     at org.gradle.internal.Transformers$4.transform(Transformers.java:169) 
     at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:106) 
     at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:61) 
     at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker.execute(DefaultTaskGraphExecuter.java:228) 
     at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker.execute(DefaultTaskGraphExecuter.java:215) 
     at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.processTask(AbstractTaskPlanExecutor.java:77) 
     at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.run(AbstractTaskPlanExecutor.java:58) 
     at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:54) 
     at org.gradle.internal.concurrent.StoppableExecutorImpl$1.run(StoppableExecutorImpl.java:40) 
Caused by: java.lang.RuntimeException: Job failed, see logs for details 
     at com.android.build.gradle.internal.transforms.ProGuardTransform.transform(ProGuardTransform.java:196) 
     at com.android.build.gradle.internal.pipeline.TransformTask$2.call(TransformTask.java:185) 
     at com.android.build.gradle.internal.pipeline.TransformTask$2.call(TransformTask.java:181) 
     at com.android.builder.profile.ThreadRecorder.record(ThreadRecorder.java:102) 
     at com.android.build.gradle.internal.pipeline.TransformTask.transform(TransformTask.java:176) 
     at org.gradle.internal.reflect.JavaMethod.invoke(JavaMethod.java:73) 
     at org.gradle.api.internal.project.taskfactory.DefaultTaskClassInfoStore$IncrementalTaskAction.doExecute(DefaultTaskClassInfoStore.java:163) 
     at org.gradle.api.internal.project.taskfactory.DefaultTaskClassInfoStore$StandardTaskAction.execute(DefaultTaskClassInfoStore.java:134) 
     at org.gradle.api.internal.project.taskfactory.DefaultTaskClassInfoStore$StandardTaskAction.execute(DefaultTaskClassInfoStore.java:123) 
     at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeAction(ExecuteActionsTaskExecuter.java:95) 
     at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:76) 
     ... 20 more 
Caused by: java.io.IOException: java.lang.NullPointerException 
     at com.android.build.gradle.internal.transforms.ProGuardTransform.doMinification(ProGuardTransform.java:283) 
     at com.android.build.gradle.internal.transforms.ProGuardTransform.access$000(ProGuardTransform.java:63) 
     at com.android.build.gradle.internal.transforms.ProGuardTransform$1.run(ProGuardTransform.java:173) 
     at com.android.builder.tasks.Job.runTask(Job.java:48) 
     at com.android.build.gradle.tasks.SimpleWorkQueue$EmptyThreadContext.runTask(SimpleWorkQueue.java:41) 
     at com.android.builder.tasks.WorkQueue.run(WorkQueue.java:225) 
Caused by: java.lang.NullPointerException 
     at proguard.optimize.info.NonEmptyStackReturnMarker.setReturnsWithNonEmptyStack(NonEmptyStackReturnMarker.java:102) 
     at proguard.optimize.info.NonEmptyStackReturnMarker.markReturnWithNonEmptyStack(NonEmptyStackReturnMarker.java:95) 
     at proguard.optimize.info.NonEmptyStackReturnMarker.visitSimpleInstruction(NonEmptyStackReturnMarker.java:72) 
     at proguard.classfile.instruction.visitor.MultiInstructionVisitor.visitSimpleInstruction(MultiInstructionVisitor.java:88) 
     at proguard.classfile.instruction.SimpleInstruction.accept(SimpleInstruction.java:218) 
     at proguard.classfile.attribute.CodeAttribute.instructionsAccept(CodeAttribute.java:138) 
     at proguard.classfile.attribute.CodeAttribute.instructionsAccept(CodeAttribute.java:110) 
     at proguard.classfile.instruction.visitor.AllInstructionVisitor.visitCodeAttribute(AllInstructionVisitor.java:54) 
     at proguard.classfile.attribute.visitor.MultiAttributeVisitor.visitCodeAttribute(MultiAttributeVisitor.java:245) 
     at proguard.classfile.attribute.CodeAttribute.accept(CodeAttribute.java:101) 
     at proguard.classfile.ProgramMethod.attributesAccept(ProgramMethod.java:81) 
     at proguard.classfile.attribute.visitor.AllAttributeVisitor.visitProgramMember(AllAttributeVisitor.java:95) 
     at proguard.classfile.util.SimplifiedVisitor.visitProgramMethod(SimplifiedVisitor.java:92) 
     at proguard.classfile.visitor.MultiMemberVisitor.visitProgramMethod(MultiMemberVisitor.java:92) 
     at proguard.classfile.ProgramMethod.accept(ProgramMethod.java:73) 
     at proguard.classfile.ProgramClass.methodsAccept(ProgramClass.java:516) 
     at proguard.classfile.visitor.AllMethodVisitor.visitProgramClass(AllMethodVisitor.java:47) 
     at proguard.classfile.visitor.MultiClassVisitor.visitProgramClass(MultiClassVisitor.java:85) 
     at proguard.classfile.ProgramClass.accept(ProgramClass.java:358) 
     at proguard.classfile.ClassPool.classesAccept(ClassPool.java:124) 
     at proguard.optimize.Optimizer.execute(Optimizer.java:649) 
     at proguard.ProGuard.optimize(ProGuard.java:328) 
     at proguard.ProGuard.execute(ProGuard.java:127) 
     at com.android.build.gradle.internal.transforms.BaseProguardAction.runProguard(BaseProguardAction.java:54) 
     at com.android.build.gradle.internal.transforms.ProGuardTransform.doMinification(ProGuardTransform.java:254) 
     ... 5 more 


BUILD FAILED 

Answer 1

hereと同様の問題があります。 proguard 5.3.3で修正されているようです。 5.3.3へ

てみてくださいアップグレードのProGuardの：

buildscript { 
    configurations.all { 
     resolutionStrategy { 
      force 'net.sf.proguard:proguard-gradle:5.3.3' 
     } 
    } 
}