R8 throws NullPointerException from within AndroidStudio, but not from commandline via gradlew - android-studio

Question

Problem
When I click on the debug icon in Android Studio, I get this NullPointerException from R8.
Executing tasks: [:app:assembleDebug] in project /Users/gary/Developer/Foo/Foo-Android
> Task :app:preBuild UP-TO-DATE
> Task :app:preDebugBuild UP-TO-DATE
> Task :app:checkDebugManifest UP-TO-DATE
> Task :app:generateDebugBuildConfig UP-TO-DATE
> Task :app:compileDebugAidl NO-SOURCE
> Task :app:compileDebugRenderscript NO-SOURCE
> Task :app:mainApkListPersistenceDebug
> Task :app:generateDebugResValues
> Task :app:generateDebugResources
> Task :app:createDebugCompatibleScreenManifests
> Task :app:processDebugManifest
> Task :app:mergeDebugResources
> Task :app:processDebugResources
> Task :app:kaptGenerateStubsDebugKotlin
> Task :app:kaptDebugKotlin
w: [kapt] Incremental annotation processing requested, but support is disabled because the following processors are not incremental: androidx.room.RoomProcessor (NON_INCREMENTAL).
> Task :app:compileDebugKotlin
w: /Users/gary/Developer/Foo/Foo-Android/app/src/main/java/com/foo/restapis/LoggingInterceptor.kt: (38, 49): 'create(MediaType?, String): ResponseBody' is deprecated. Moved to extension function. Put the 'content' argument first to fix Java
w: /Users/gary/Developer/Foo/Foo-Android/app/src/main/java/com/Foo/screens/player/PlayerActivity.kt: (132, 33): 'getRunningServices(Int): (Mutable)List<ActivityManager.RunningServiceInfo!>!' is deprecated. Deprecated in Java
w: /Users/gary/Developer/Foo/Foo-Android/app/src/main/java/com/foo/service/KKAudioPlayer.kt: (205, 35): 'setNotificationListener(PlayerNotificationManager.NotificationListener!): Unit' is deprecated. Deprecated in Java
w: /Users/gary/Developer/Foo/Foo-Android/app/src/main/java/com/foo/service/KKAudioPlayer.kt: (283, 32): 'ExtractorMediaSource' is deprecated. Deprecated in Java
w: /Users/gary/Developer/Foo/Foo-Android/app/src/main/java/com/foo/service/KKAudioPlayer.kt: (283, 53): 'Factory' is deprecated. Deprecated in Java
w: /Users/gary/Developer/Foo/Foo-Android/app/src/main/java/com/foo/service/KKAudioPlayer.kt: (293, 17): 'ExtractorMediaSource' is deprecated. Deprecated in Java
w: /Users/gary/Developer/Foo/Foo-Android/app/src/main/java/com/foo/service/KKAudioPlayer.kt: (293, 38): 'Factory' is deprecated. Deprecated in Java
w: /Users/gary/Developer/Foo/Foo-Android/app/src/main/java/com/foo/service/KKAudioPlayer.kt: (295, 21): 'ExtractorMediaSource' is deprecated. Deprecated in Java
w: /Users/gary/Developer/Foo/Foo-Android/app/src/main/java/com/foo/service/KKAudioPlayer.kt: (295, 42): 'Factory' is deprecated. Deprecated in Java
> Task :app:mergeDebugShaders
> Task :app:compileDebugShaders
> Task :app:generateDebugAssets
> Task :app:mergeDebugAssets
> Task :app:javaPreCompileDebug
> Task :app:compileDebugJavaWithJavac
> Task :app:compileDebugSources
> Task :app:processDebugJavaRes NO-SOURCE
> Task :app:validateSigningDebug
> Task :app:checkDebugDuplicateClasses
> Task :app:transformClassesWithProfilers-transformForDebug
> Task :app:mergeDebugJavaResource
> Task :app:transformClassesWithDexBuilderForDebug FAILED
org.gradle.workers.WorkerExecutionException: There was a failure while executing work items
at org.gradle.workers.internal.DefaultWorkerExecutor.workerExecutionException(DefaultWorkerExecutor.java:158)
at org.gradle.workers.internal.DefaultWorkerExecutor.await(DefaultWorkerExecutor.java:152)
at com.android.build.gradle.internal.transforms.DexArchiveBuilderTransform.transform(DexArchiveBuilderTransform.java:424)
at com.android.build.gradle.internal.pipeline.TransformTask$2.call(TransformTask.java:239)
at com.android.build.gradle.internal.pipeline.TransformTask$2.call(TransformTask.java:235)
at com.android.builder.profile.ThreadRecorder.record(ThreadRecorder.java:106)
at com.android.build.gradle.internal.pipeline.TransformTask.transform(TransformTask.java:230)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.gradle.internal.reflect.JavaMethod.invoke(JavaMethod.java:103)
at org.gradle.api.internal.project.taskfactory.IncrementalTaskInputsTaskAction.doExecute(IncrementalTaskInputsTaskAction.java:46)
at org.gradle.api.internal.project.taskfactory.StandardTaskAction.execute(StandardTaskAction.java:41)
at org.gradle.api.internal.project.taskfactory.AbstractIncrementalTaskAction.execute(AbstractIncrementalTaskAction.java:25)
at org.gradle.api.internal.project.taskfactory.StandardTaskAction.execute(StandardTaskAction.java:28)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$5.run(ExecuteActionsTaskExecuter.java:404)
at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:402)
at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:394)
at org.gradle.internal.operations.DefaultBuildOperationExecutor$1.execute(DefaultBuildOperationExecutor.java:165)
at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:250)
at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:158)
at org.gradle.internal.operations.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:92)
at org.gradle.internal.operations.DelegatingBuildOperationExecutor.run(DelegatingBuildOperationExecutor.java:31)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeAction(ExecuteActionsTaskExecuter.java:393)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:376)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.access$200(ExecuteActionsTaskExecuter.java:80)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$TaskExecution.execute(ExecuteActionsTaskExecuter.java:213)
at org.gradle.internal.execution.steps.ExecuteStep.lambda$execute$0(ExecuteStep.java:32)
at java.util.Optional.map(Optional.java:215)
at org.gradle.internal.execution.steps.ExecuteStep.execute(ExecuteStep.java:32)
at org.gradle.internal.execution.steps.ExecuteStep.execute(ExecuteStep.java:26)
at org.gradle.internal.execution.steps.CleanupOutputsStep.execute(CleanupOutputsStep.java:58)
at org.gradle.internal.execution.steps.CleanupOutputsStep.execute(CleanupOutputsStep.java:35)
at org.gradle.internal.execution.steps.ResolveInputChangesStep.execute(ResolveInputChangesStep.java:48)
at org.gradle.internal.execution.steps.ResolveInputChangesStep.execute(ResolveInputChangesStep.java:33)
at org.gradle.internal.execution.steps.CancelExecutionStep.execute(CancelExecutionStep.java:39)
at org.gradle.internal.execution.steps.TimeoutStep.executeWithoutTimeout(TimeoutStep.java:73)
at org.gradle.internal.execution.steps.TimeoutStep.execute(TimeoutStep.java:54)
at org.gradle.internal.execution.steps.CatchExceptionStep.execute(CatchExceptionStep.java:35)
at org.gradle.internal.execution.steps.CreateOutputsStep.execute(CreateOutputsStep.java:51)
at org.gradle.internal.execution.steps.SnapshotOutputsStep.execute(SnapshotOutputsStep.java:45)
at org.gradle.internal.execution.steps.SnapshotOutputsStep.execute(SnapshotOutputsStep.java:31)
at org.gradle.internal.execution.steps.CacheStep.executeWithoutCache(CacheStep.java:201)
at org.gradle.internal.execution.steps.CacheStep.execute(CacheStep.java:70)
at org.gradle.internal.execution.steps.CacheStep.execute(CacheStep.java:45)
at org.gradle.internal.execution.steps.BroadcastChangingOutputsStep.execute(BroadcastChangingOutputsStep.java:49)
at org.gradle.internal.execution.steps.StoreSnapshotsStep.execute(StoreSnapshotsStep.java:43)
at org.gradle.internal.execution.steps.StoreSnapshotsStep.execute(StoreSnapshotsStep.java:32)
at org.gradle.internal.execution.steps.RecordOutputsStep.execute(RecordOutputsStep.java:38)
at org.gradle.internal.execution.steps.RecordOutputsStep.execute(RecordOutputsStep.java:24)
at org.gradle.internal.execution.steps.SkipUpToDateStep.executeBecause(SkipUpToDateStep.java:96)
at org.gradle.internal.execution.steps.SkipUpToDateStep.lambda$execute$0(SkipUpToDateStep.java:89)
at java.util.Optional.map(Optional.java:215)
at org.gradle.internal.execution.steps.SkipUpToDateStep.execute(SkipUpToDateStep.java:54)
at org.gradle.internal.execution.steps.SkipUpToDateStep.execute(SkipUpToDateStep.java:38)
at org.gradle.internal.execution.steps.ResolveChangesStep.execute(ResolveChangesStep.java:77)
at org.gradle.internal.execution.steps.ResolveChangesStep.execute(ResolveChangesStep.java:37)
at org.gradle.internal.execution.steps.legacy.MarkSnapshottingInputsFinishedStep.execute(MarkSnapshottingInputsFinishedStep.java:36)
at org.gradle.internal.execution.steps.legacy.MarkSnapshottingInputsFinishedStep.execute(MarkSnapshottingInputsFinishedStep.java:26)
at org.gradle.internal.execution.steps.ResolveCachingStateStep.execute(ResolveCachingStateStep.java:90)
at org.gradle.internal.execution.steps.ResolveCachingStateStep.execute(ResolveCachingStateStep.java:48)
at org.gradle.internal.execution.impl.DefaultWorkExecutor.execute(DefaultWorkExecutor.java:33)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute(ExecuteActionsTaskExecuter.java:120)
at org.gradle.api.internal.tasks.execution.ResolveBeforeExecutionStateTaskExecuter.execute(ResolveBeforeExecutionStateTaskExecuter.java:75)
at org.gradle.api.internal.tasks.execution.ValidatingTaskExecuter.execute(ValidatingTaskExecuter.java:62)
at org.gradle.api.internal.tasks.execution.SkipEmptySourceFilesTaskExecuter.execute(SkipEmptySourceFilesTaskExecuter.java:108)
at org.gradle.api.internal.tasks.execution.ResolveBeforeExecutionOutputsTaskExecuter.execute(ResolveBeforeExecutionOutputsTaskExecuter.java:67)
at org.gradle.api.internal.tasks.execution.ResolveAfterPreviousExecutionStateTaskExecuter.execute(ResolveAfterPreviousExecutionStateTaskExecuter.java:46)
at org.gradle.api.internal.tasks.execution.CleanupStaleOutputsExecuter.execute(CleanupStaleOutputsExecuter.java:94)
at org.gradle.api.internal.tasks.execution.FinalizePropertiesTaskExecuter.execute(FinalizePropertiesTaskExecuter.java:46)
at org.gradle.api.internal.tasks.execution.ResolveTaskExecutionModeExecuter.execute(ResolveTaskExecutionModeExecuter.java:95)
at org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter.execute(SkipTaskWithNoActionsExecuter.java:57)
at org.gradle.api.internal.tasks.execution.SkipOnlyIfTaskExecuter.execute(SkipOnlyIfTaskExecuter.java:56)
at org.gradle.api.internal.tasks.execution.CatchExceptionTaskExecuter.execute(CatchExceptionTaskExecuter.java:36)
at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter$1.executeTask(EventFiringTaskExecuter.java:73)
at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter$1.call(EventFiringTaskExecuter.java:52)
at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter$1.call(EventFiringTaskExecuter.java:49)
at org.gradle.internal.operations.DefaultBuildOperationExecutor$CallableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:416)
at org.gradle.internal.operations.DefaultBuildOperationExecutor$CallableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:406)
at org.gradle.internal.operations.DefaultBuildOperationExecutor$1.execute(DefaultBuildOperationExecutor.java:165)
at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:250)
at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:158)
at org.gradle.internal.operations.DefaultBuildOperationExecutor.call(DefaultBuildOperationExecutor.java:102)
at org.gradle.internal.operations.DelegatingBuildOperationExecutor.call(DelegatingBuildOperationExecutor.java:36)
at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter.execute(EventFiringTaskExecuter.java:49)
at org.gradle.execution.plan.LocalTaskNodeExecutor.execute(LocalTaskNodeExecutor.java:43)
at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$InvokeNodeExecutorsAction.execute(DefaultTaskExecutionGraph.java:355)
at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$InvokeNodeExecutorsAction.execute(DefaultTaskExecutionGraph.java:343)
at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$BuildOperationAwareExecutionAction.execute(DefaultTaskExecutionGraph.java:336)
at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$BuildOperationAwareExecutionAction.execute(DefaultTaskExecutionGraph.java:322)
at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker$1.execute(DefaultPlanExecutor.java:134)
at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker$1.execute(DefaultPlanExecutor.java:129)
at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker.execute(DefaultPlanExecutor.java:202)
at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker.executeNextNode(DefaultPlanExecutor.java:193)
at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker.run(DefaultPlanExecutor.java:129)
at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:63)
at org.gradle.internal.concurrent.ManagedExecutorImpl$1.run(ManagedExecutorImpl.java:46)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:55)
at java.lang.Thread.run(Thread.java:748)
Caused by: org.gradle.workers.internal.DefaultWorkerExecutor$WorkExecutionException: A failure occurred while executing com.android.build.gradle.internal.transforms.DexArchiveBuilderTransform$DexConversionWorkAction
at org.gradle.workers.internal.DefaultWorkerExecutor$WorkerExecution.waitForCompletion(DefaultWorkerExecutor.java:285)
at org.gradle.internal.work.DefaultAsyncWorkTracker.waitForItemsAndGatherFailures(DefaultAsyncWorkTracker.java:115)
at org.gradle.internal.work.DefaultAsyncWorkTracker.waitForCompletion(DefaultAsyncWorkTracker.java:87)
at org.gradle.workers.internal.DefaultWorkerExecutor.await(DefaultWorkerExecutor.java:150)
... 100 more
Caused by: org.gradle.tooling.BuildException: Failed to process /Users/gary/Developer/Foo/Foo-Android/app/build/intermediates/transforms/profilers-transform/debug/29.jar
at com.android.build.gradle.internal.transforms.DexArchiveBuilderTransform$DexConversionWorkAction.run(DexArchiveBuilderTransform.java:705)
at org.gradle.workers.internal.DefaultWorkerServer.execute(DefaultWorkerServer.java:39)
at org.gradle.workers.internal.NoIsolationWorkerFactory$1$1.execute(NoIsolationWorkerFactory.java:61)
at org.gradle.workers.internal.AbstractWorker$1.call(AbstractWorker.java:44)
at org.gradle.workers.internal.AbstractWorker$1.call(AbstractWorker.java:41)
at org.gradle.internal.operations.DefaultBuildOperationExecutor$CallableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:416)
at org.gradle.internal.operations.DefaultBuildOperationExecutor$CallableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:406)
at org.gradle.internal.operations.DefaultBuildOperationExecutor$1.execute(DefaultBuildOperationExecutor.java:165)
at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:250)
at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:158)
at org.gradle.internal.operations.DefaultBuildOperationExecutor.call(DefaultBuildOperationExecutor.java:102)
at org.gradle.internal.operations.DelegatingBuildOperationExecutor.call(DelegatingBuildOperationExecutor.java:36)
at org.gradle.workers.internal.AbstractWorker.executeWrappedInBuildOperation(AbstractWorker.java:41)
at org.gradle.workers.internal.NoIsolationWorkerFactory$1.execute(NoIsolationWorkerFactory.java:55)
at org.gradle.workers.internal.DefaultWorkerExecutor$1.call(DefaultWorkerExecutor.java:105)
at org.gradle.workers.internal.DefaultWorkerExecutor$1.call(DefaultWorkerExecutor.java:99)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at org.gradle.internal.work.DefaultConditionalExecutionQueue$ExecutionRunner.runExecution(DefaultConditionalExecutionQueue.java:215)
at org.gradle.internal.work.DefaultConditionalExecutionQueue$ExecutionRunner.runBatch(DefaultConditionalExecutionQueue.java:164)
at org.gradle.internal.work.DefaultConditionalExecutionQueue$ExecutionRunner.run(DefaultConditionalExecutionQueue.java:131)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
... 6 more
Caused by: com.android.builder.dexing.DexArchiveBuilderException: Failed to process /Users/gary/Developer/Foo/Foo-Android/app/build/intermediates/transforms/profilers-transform/debug/29.jar
at com.android.build.gradle.internal.transforms.DexArchiveBuilderTransform.launchProcessing(DexArchiveBuilderTransform.java:910)
at com.android.build.gradle.internal.transforms.DexArchiveBuilderTransform.access$600(DexArchiveBuilderTransform.java:114)
at com.android.build.gradle.internal.transforms.DexArchiveBuilderTransform$DexConversionWorkAction.run(DexArchiveBuilderTransform.java:697)
... 27 more
Caused by: com.android.builder.dexing.DexArchiveBuilderException: Error while dexing.
at com.android.builder.dexing.D8DexArchiveBuilder.getExceptionToRethrow(D8DexArchiveBuilder.java:124)
at com.android.builder.dexing.D8DexArchiveBuilder.convert(D8DexArchiveBuilder.java:101)
at com.android.build.gradle.internal.transforms.DexArchiveBuilderTransform.launchProcessing(DexArchiveBuilderTransform.java:905)
... 29 more
Caused by: java.lang.NullPointerException
at com.android.tools.r8.ir.conversion.N.b(:988)
at com.android.tools.r8.ir.conversion.N.buildPrelude(:149)
at com.android.tools.r8.ir.conversion.IRBuilder.a(:51)
at com.android.tools.r8.graph.JarCode.a(:16)
at com.android.tools.r8.graph.JarCode.b(:69)
at com.android.tools.r8.graph.JarCode.buildIR(:1)
at com.android.tools.r8.graph.DexEncodedMethod.buildIR(:2)
at com.android.tools.r8.ir.conversion.IRConverter.b(:215)
at com.android.tools.r8.ir.conversion.IRConverter.b(:37)
at com.android.tools.r8.ir.conversion.IRConverter.a(:49)
at com.android.tools.r8.graph.DexClass.forEachMethod(:2)
at com.android.tools.r8.ir.conversion.IRConverter.b(:28)
at com.android.tools.r8.ir.conversion.IRConverter.d(:8)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at com.google.common.util.concurrent.TrustedListenableFutureTask$TrustedFutureInterruptibleTask.runInterruptibly(TrustedListenableFutureTask.java:125)
at com.google.common.util.concurrent.InterruptibleTask.run(InterruptibleTask.java:57)
at com.google.common.util.concurrent.TrustedListenableFutureTask.run(TrustedListenableFutureTask.java:78)
at com.google.common.util.concurrent.MoreExecutors$DirectExecutorService.execute(MoreExecutors.java:261)
at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:112)
at com.google.common.util.concurrent.AbstractListeningExecutorService.submit(AbstractListeningExecutorService.java:56)
at com.google.common.util.concurrent.AbstractListeningExecutorService.submit(AbstractListeningExecutorService.java:36)
at com.android.tools.r8.ir.conversion.IRConverter.a(:44)
at com.android.tools.r8.ir.conversion.IRConverter.a(:9)
at com.android.tools.r8.D8.a(:33)
at com.android.tools.r8.D8.d(:8)
at com.android.tools.r8.D8.b(:1)
at com.android.tools.r8.utils.t.a(:23)
at com.android.tools.r8.D8.run(:11)
at com.android.builder.dexing.D8DexArchiveBuilder.convert(D8DexArchiveBuilder.java:99)
... 30 more
Suppressed: java.util.concurrent.ExecutionException: java.lang.NullPointerException
at com.google.common.util.concurrent.AbstractFuture.getDoneValue(AbstractFuture.java:552)
at com.google.common.util.concurrent.AbstractFuture.get(AbstractFuture.java:513)
at com.google.common.util.concurrent.FluentFuture$TrustedFuture.get(FluentFuture.java:82)
at com.android.tools.r8.utils.ThreadUtils.a(:4)
at com.android.tools.r8.ir.conversion.IRConverter.a(:46)
... 37 more
[CIRCULAR REFERENCE:java.lang.NullPointerException]
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':app:transformClassesWithDexBuilderForDebug'.
> There was a failure while executing work items
> A failure occurred while executing com.android.build.gradle.internal.transforms.DexArchiveBuilderTransform$DexConversionWorkAction
> Failed to process /Users/gary/Developer/Foo/Foo-Android/app/build/intermediates/transforms/profilers-transform/debug/29.jar
* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
* Get more help at https://help.gradle.org
BUILD FAILED in 45s
21 actionable tasks: 19 executed, 2 up-to-date
But...
When I try to investigate further by running gradlew from the command line, there are no reported errors.
./gradlew :app:assembleDebug
Deprecated Gradle features were used in this build, making it incompatible with Gradle 6.0.
Use '--warning-mode all' to show the individual deprecation warnings.
See https://docs.gradle.org/5.4.1/userguide/command_line_interface.html#sec:command_line_warnings
BUILD SUCCESSFUL in 16s
29 actionable tasks: 12 executed, 17 up-to-date
So I'm at a loss for how to proceed. This is a commercial media app that had passed beta testing and was supposed to be released... but now this has me stymied.
Things I've tried so far...
clean and rebuild
File -> Invalidate Caches & Restart
Wiping project .gradle and user/.gradle caches, clean and rebuild
enableMultiDex = true in the gradle.config
Increasing JVM memory from 2MB to 4MB
Rebooting the computer
Questions
How to resolve this exception and get un-stuck?
Is it my code or an R8 bug?
Why can't I reproduce the error from the command line?
Is Android Studio running gradle with extra flags its not reporting?
Version Information
(everything should be up-to-date when filed in stack overflow)
Android Studio 3.5
Gradle 5.4.1
Android Studio Gradle Plugin 3.5.0
Java 1.8
Build Tools 28.0.3
build.gradle =
apply plugin: 'com.android.application'
apply plugin: 'kotlin-android'
apply plugin: 'kotlin-android-extensions'
apply plugin: 'kotlin-kapt'
android {
compileSdkVersion 28
defaultConfig {
applicationId "com.foo"
minSdkVersion 25
targetSdkVersion 28
versionCode 16
versionName "1.0.1"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
javaCompileOptions {
annotationProcessorOptions {
arguments = ["room.schemaLocation": "$projectDir/schemas".toString()]
}
}
}
buildTypes {
debug {
buildConfigField "String", 'AUTH_URL', "\"https://debug.foo.com/oauth/\""
buildConfigField "String", 'BASE_URL', "\"https://debug.foo.com/api/v1/\""
}
staging {
buildConfigField "String", 'AUTH_URL', "\"https://staging.foo.com/oauth/\""
buildConfigField "String", 'BASE_URL', "\"https://staging.foo.com/api/v1/\""
}
release {
buildConfigField "String", 'AUTH_URL', "\"https://api.foo.com/oauth/\""
buildConfigField "String", 'BASE_URL', "\"https://api.foo.com/api/v1/\""
// enables code shrinking, obfuscation, and optimization
minifyEnabled true
// enables resource shrinking
shrinkResources true
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
}
}
compileOptions {
sourceCompatibility JavaVersion.VERSION_1_8
targetCompatibility JavaVersion.VERSION_1_8
}
androidExtensions {
experimental = true
}
lintOptions {
disable 'RestrictedApi'
}
kotlinOptions {
jvmTarget = '1.8'
}
kapt {
useBuildCache = true
}
packagingOptions {
exclude 'META-INF/atomicfu.kotlin_module'
}
buildToolsVersion = '28.0.3'
}
dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.3.50"
implementation "org.jetbrains.kotlin:kotlin-reflect:1.3.50"
implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-core:1.3.0'
implementation "android.arch.lifecycle:extensions:1.1.1"
kapt "android.arch.lifecycle:common-java8:1.1.1"
implementation "android.arch.persistence.room:runtime:1.1.1"
kapt "android.arch.persistence.room:compiler:1.1.1"
implementation "android.arch.persistence.room:rxjava2:1.1.1"
testImplementation "android.arch.persistence.room:testing:1.1.1"
implementation 'com.google.android.exoplayer:exoplayer-core:2.10.1'
implementation 'com.google.android.exoplayer:exoplayer-ui:2.10.1'
implementation "androidx.appcompat:appcompat:1.1.0"
implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
implementation "androidx.preference:preference:1.1.0"
// retrofit
implementation 'com.squareup.retrofit2:retrofit:2.6.1'
implementation 'com.squareup.retrofit2:converter-moshi:2.6.1'
implementation 'com.squareup.retrofit2:adapter-rxjava2:2.6.1'
// rxjava
implementation "io.reactivex.rxjava2:rxjava:2.2.10"
implementation "io.reactivex.rxjava2:rxandroid:2.1.1"
implementation 'cz.ackee.rxoauth2:core:2.1.1'
implementation 'cz.ackee.rxoauth2:retrofit-adapter:2.1.1'
implementation 'com.squareup.picasso:picasso:2.71828'
implementation 'com.google.android.material:material:1.0.0'
implementation 'com.beust:klaxon:5.0.1'
// test
testRuntimeOnly "org.junit.jupiter:junit-jupiter-engine:5.5.1"
testImplementation "androidx.test:runner:1.2.0"
testImplementation 'org.assertj:assertj-core:3.13.2'
testImplementation "org.junit.jupiter:junit-jupiter-api:5.5.1"
testImplementation "org.junit.jupiter:junit-jupiter-params:5.5.1"
testImplementation "io.mockk:mockk:1.9.3"
testImplementation "com.github.andrzejchm.RESTMock:android:0.4.0"
androidTestImplementation "androidx.test:runner:1.2.0"
androidTestImplementation "androidx.test.espresso:espresso-core:3.2.0"
}
gradle.properties =
org.gradle.jvmargs=-Xmx4096m
kotlin.code.style=official
# migrate to androidX
android.useAndroidX=true
android.enableJetifier=true

Answer 1

followed a workaround mentioned in commit 38934 and also disable Advanced profiling

Answer 2

Posting as answer as I don't have privileges to comment:
If you're seeing above R8 Nullpointerexception only when building to Lollipop or Marshmallow devices, disabling Advanced profiling did the trick for me.
all credit to antoniomerlin! Thank you!

Answer 3

I meet a similar problem, In my case, I solved it by downgrade the java version from 15 to 11(default java inside Android Studio Package)
Hope this information could help anyone in the same case like me😄