android - 在android中获取java.lang.NullPointerException

Question

我正在为 ndk 崩溃使用 firebase crashlytics 测试版。我正在遵循 here 给出的所有步骤.但我面临一个问题，无法上传符号文件。每当我要运行任务./gradlew uploadCrashlyticsSymbolFileDebug --stacktrace它说java.lang.NullPointerException .但是为什么以及在哪里它是空的？

这是此任务的完整堆栈跟踪

> Task :app:generateCrashlyticsSymbolFileDebug FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':app:generateCrashlyticsSymbolFileDebug'.
> java.lang.NullPointerException (no error message)

* Try:
Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Exception is:
org.gradle.api.tasks.TaskExecutionException: Execution failed for task ':app:generateCrashlyticsSymbolFileDebug'.
        at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$3.accept(ExecuteActionsTaskExecuter.java:151)
        at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$3.accept(ExecuteActionsTaskExecuter.java:148)
        at org.gradle.internal.Try$Failure.ifSuccessfulOrElse(Try.java:191)
        at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute(ExecuteActionsTaskExecuter.java:141)
        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$1.run(ManagedExecutorImpl.java:46)
        at org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:55)
Caused by: java.lang.NullPointerException
        at com.google.firebase.crashlytics.buildtools.ndk.internal.dwarf.DwarfDataParser.processDebugInfoEntry(DwarfDataParser.java:297)
        at com.google.firebase.crashlytics.buildtools.ndk.internal.dwarf.DwarfDataParser.processChildDebugInfoEntries(DwarfDataParser.java:269)
        at com.google.firebase.crashlytics.buildtools.ndk.internal.dwarf.DwarfDataParser.processCompilationUnit(DwarfDataParser.java:194)
        at com.google.firebase.crashlytics.buildtools.ndk.internal.dwarf.DwarfDataParser.readCompilationUnit(DwarfDataParser.java:173)
        at com.google.firebase.crashlytics.buildtools.ndk.internal.dwarf.DwarfDataParser.readCompilationUnit(DwarfDataParser.java:139)
        at com.google.firebase.crashlytics.buildtools.ndk.internal.dwarf.DwarfDataParser.parse(DwarfDataParser.java:63)
        at com.google.firebase.crashlytics.buildtools.ndk.internal.elf.ElfDataParser.parseElf(ElfDataParser.java:132)
        at com.google.firebase.crashlytics.buildtools.ndk.internal.elf.ElfDataParser.parse(ElfDataParser.java:101)
        at com.google.firebase.crashlytics.buildtools.ndk.internal.elf.ElfDataParser.parse(ElfDataParser.java:39)
        at com.google.firebase.crashlytics.buildtools.ndk.internal.csym.ElfCSymFactory.createCSymFromFile(ElfCSymFactory.java:92)
        at com.google.firebase.crashlytics.buildtools.ndk.internal.csym.NdkCSymGenerator.generateCodeMappings(NdkCSymGenerator.java:101)
        at com.google.firebase.crashlytics.buildtools.ndk.internal.csym.NdkCSymGenerator.generateCodeMappings(NdkCSymGenerator.java:90)
        at com.google.firebase.crashlytics.buildtools.ndk.internal.csym.NdkCSymGenerator.generateFromDirectories(NdkCSymGenerator.java:44)
        at com.google.firebase.crashlytics.buildtools.Buildtools.generateNativeSymbolFile(Buildtools.java:157)
        at com.google.firebase.crashlytics.buildtools.Buildtools$generateNativeSymbolFile$3.call(Unknown Source)
        at com.google.firebase.crashlytics.buildtools.gradle.tasks.GenerateSymbolFileTask.generateSymbols(GenerateSymbolFileTask.groovy:45)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at org.gradle.internal.reflect.JavaMethod.invoke(JavaMethod.java:103)
        at org.gradle.api.internal.project.taskfactory.StandardTaskAction.doExecute(StandardTaskAction.java:48)
        at org.gradle.api.internal.project.taskfactory.StandardTaskAction.execute(StandardTaskAction.java:41)
        at org.gradle.api.internal.project.taskfactory.StandardTaskAction.execute(StandardTaskAction.java:28)
        at org.gradle.api.internal.AbstractTask$TaskActionWrapper.execute(AbstractTask.java:702)
        at org.gradle.api.internal.AbstractTask$TaskActionWrapper.execute(AbstractTask.java:669)
        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$1(ExecuteStep.java:33)
        at org.gradle.internal.execution.steps.ExecuteStep.execute(ExecuteStep.java:33)
        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 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)
        ... 35 more

我已经遵循了 firebase ndk crashlytics 的所有步骤。但没有运气

这是我的应用级别 build.gradle文件

apply plugin: 'com.android.application'
apply plugin: 'com.google.firebase.crashlytics'

android {
    compileSdkVersion 29
    defaultConfig {
        applicationId "com.ndk.demo"
        minSdkVersion 18
        targetSdkVersion 29
        versionCode 1
        versionName "1.0"
        multiDexEnabled true
        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"

        externalNativeBuild {
            cmake {
                //version "3.10.2"
                cppFlags "-std=c++11 -frtti -fexceptions"
                abiFilters "arm64-v8a", "armeabi-v7a", "x86", "x86_64"
            }
        }
    }

    sourceSets.main {
        jniLibs.srcDirs = ['libs']
        jni.srcDirs = []
    }

    externalNativeBuild {
        cmake {
            path "CMakeLists.txt"
        }
    }
    splits {
        abi {
            enable true
            reset()
            include "arm64-v8a", "armeabi-v7a", "x86", "x86_64"
            exclude "armeabi"
            universalApk true
        }
    }

    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'

            firebaseCrashlytics {
                nativeSymbolUploadEnabled true
//                mappingFileUploadEnabled true
            }
        }

        debug {
            minifyEnabled false
            debuggable true
            firebaseCrashlytics {
                nativeSymbolUploadEnabled true
//                mappingFileUploadEnabled true
            }
        }
    }

    dexOptions {
        preDexLibraries false
        javaMaxHeapSize "4g"
    }

    configurations.all {
        resolutionStrategy.force 'com.google.code.findbugs:jsr305:1.3.9'
    }

    dataBinding {
        enabled = true
    }

    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }

    packagingOptions {
        doNotStrip "*/armeabi/*.so"
    }
}

/*afterEvaluate {
    if (gradle.startParameter.taskNames.contains(":app:assembleDebug")) {
        assembleDebug.finalizedBy("uploadCrashlyticsSymbolFileDebug")
    } else if (gradle.startParameter.taskNames.contains(":app:assembleRelease")) {
        assembleRelease.finalizedBy("uploadCrashlyticsSymbolFileRelease")
    }
}*/

dependencies {
    implementation 'androidx.appcompat:appcompat:1.1.0'
    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
    implementation 'androidx.multidex:multidex:2.0.1'


    //new crashlytics
    implementation 'com.google.android.gms:play-services-auth:17.0.0'
    implementation 'com.google.firebase:firebase-core:17.2.2'
    implementation 'com.google.firebase:firebase-analytics:17.2.2'
    implementation 'com.google.firebase:firebase-crashlytics:17.0.0-beta01'
    implementation 'com.google.firebase:firebase-crashlytics-ndk:17.0.0-beta01'
}
apply plugin: 'com.google.gms.google-services'
apply from: "../artifacts.gradle"

有人请帮我解决这个错误。

提前致谢。

Answer 1

你不应该一起组装、安装和运行。特别是如果您启用了并行构建，那将是一个问题。 install 和 installDevice 是不同的。 install 来自 Android 插件并安装在所有设备上。 installDevice 来自我们的插件并安装在给定的设备上。默认情况下第一个，可以用 -PdeviceId= 覆盖

您可以尝试以下操作:

你能和我们分享你的 gradle 和 Android 插件版本吗？
尝试使用 ./gradlew runDebug。这将为您组装和安装。
您也可以在常规的 Android installDebug 任务之后执行 startDebug。如果您需要自己运行安装任务，这将只是启动而不是安装和启动，这很有用。
如果您启用了并行，您可以尝试使用 --no-parallel 命令行参数吗？