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android – 用proguard构建卡住“执行任务：[：app：assembleRelease]”从最近23小时到签名apk

分类：Android作者：编程之家AI导航网

我正在使用ProGuard来缩小和构建签名的apk.但它花了很长时间来构建apk并没有完成.从最后23小时开始,它停留在“执行任务：[：app：assembleRelease]”.我尝试了所有外部lib的“-Keep”和“-dontwarn”命令.仍然没有完成整个过程,也没有抛出任何错误.

这是我的proGuard-rules.pro内容.

-dontwarn android.support.**
-dontwarn in.myProject.**
-dontwarn com.woxtheBox.draglistview.**
-dontwarn com.android.support.appcompat-v7.**
-dontwarn com.android.support.support-v4.**
-dontwarn com.android.support.design.**
-dontwarn com.mcxiaoke.volley.library.**
-dontwarn com.google.code.gson.gson.**
-dontwarn com.squareup.android-times-square.**
-dontwarn com.github.woxtheBox.draglistview.**
-dontwarn com.android.support.recyclerview-v7.**
-keep class com.woxtheBox.draglistview.** { *; }
-keep interface com.woxtheBox.draglistview.** { *; }
-keep class com.android.support.appcompat-v7.**{*;}
-keep interface com.android.support.appcompat-v7.**{*;}
-keep class com.android.support.support-v4.**{*;}
-keep interface com.android.support.support-v4.**{*;}
-keep class com.android.support.design.**{*;}
-keep interface com.android.support.design.**{*;}
-keep class com.mcxiaoke.volley.library.**{*;}
-keep interface com.mcxiaoke.volley.library.**{*;}
-keep class com.google.code.gson.gson.**{*;}
-keep interface com.google.code.gson.gson.**{*;}
-keep class com.squareup.android-times-square.**{*;}
-keep interface com.squareup.android-times-square.**{*;}
-keep class com.github.woxtheBox.draglistview.**{*;}
-keep interface com.github.woxtheBox.draglistview.**{*;}
-keep class com.android.support.recyclerview-v7.**{*;}
-keep interface com.android.support.recyclerview-v7.**{*;}
-keep class com.google.android.gms.play-services-gcm.**{*;}
-keep interface com.google.android.gms.play-services-gcm.**{*;}

这是我的build.gradle文件

apply plugin: 'com.android.application'
apply plugin: 'com.google.gms.google-services'

android {
    signingConfigs {
        config {
            keyAlias 'Debug'
            keyPassword 'xyz'
            storeFile file('.app/XXXXX.jks')
            storePassword 'XCV'
        }
    }
    compileSdkVersion 23
    buildToolsversion '23.0.2'
    defaultConfig {
        applicationId "in.myProject"
        minSdkVersion 11
        targetSdkVersion 23
        versionCode 21
        versionName "0.21"
    }
    buildTypes {
        release {
            minifyEnabled true
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
    lintOptions {
        checkReleaseBuilds false
        // Or, if you prefer, you can continue to check for errors in release builds,
        // but continue the build even when errors are found:
        abortOnError false
    }
    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_7
        targetCompatibility JavaVersion.VERSION_1_7
    }
}

dependencies {
    compile filetree(dir: 'libs', include: ['*.jar'])

    compile 'com.android.support:appcompat-v7:23.4.0'
    compile 'com.android.support:support-v4:23.4.0'
    compile 'com.android.support:design:23.4.0'
    compile 'com.mcxiaoke.volley:library:1.0.19'
    compile 'com.google.code.gson:gson:2.3'
    compile 'ch.acra:acra:4.6.1'
    compile 'com.squareup:android-times-square:1.6.5@aar'
    compile 'com.github.woxtheBox:draglistview:1.2.7'
    compile 'com.android.support:recyclerview-v7:23.4.0'
    compile 'com.google.android.gms:play-services-gcm:9.0.0'
    /*compile "com.mixpanel.android:mixpanel-android:4.+"*/

}

使用默认的pro-guard文件运行pro-guard时发生错误

Error:15:24:43.753 [ERROR] [system.err] Note: there were 7 duplicate class deFinitions.
15:24:43.753 [ERROR] [system.err]       (http://proguard.sourceforge.net/manual/troubleshooting.html#duplicateclass)
15:24:44.284 [ERROR] [system.err] Warning: org.acra.ErrorReporter: can't find referenced method 'void setLatestEventInfo(android.content.Context,java.lang.CharSequence,java.lang.CharSequence,android.app.PendingIntent)' in library class android.app.Notification
15:24:45.444 [ERROR] [system.err] Warning: there were 1 unresolved references to library class members.
15:24:45.444 [ERROR] [system.err]          You probably need to update the library versions.
15:24:45.444 [ERROR] [system.err]          (http://proguard.sourceforge.net/manual/troubleshooting.html#unresolvedlibraryclassmember)
15:24:45.446 [ERROR] [org.gradle.BuildExceptionReporter] 
15:24:45.446 [ERROR] [org.gradle.BuildExceptionReporter] FAILURE: Build Failed with an exception.
15:24:45.446 [ERROR] [org.gradle.BuildExceptionReporter] 
15:24:45.446 [ERROR] [org.gradle.BuildExceptionReporter] * What went wrong:
15:24:45.446 [ERROR] [org.gradle.BuildExceptionReporter] Execution Failed for task ':app:transformClassesAndResourcesWithProguardForRelease'.
15:24:45.446 [ERROR] [org.gradle.BuildExceptionReporter] > java.io.IOException: Please correct the above warnings first.
15:24:45.447 [ERROR] [org.gradle.BuildExceptionReporter] 
15:24:45.447 [ERROR] [org.gradle.BuildExceptionReporter] * Exception is:
15:24:45.447 [ERROR] [org.gradle.BuildExceptionReporter] org.gradle.api.tasks.TaskExecutionException: Execution Failed for task ':app:transformClassesAndResourcesWithProguardForRelease'.
15:24:45.447 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:69)
15:24:45.447 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute(ExecuteActionsTaskExecuter.java:46)
15:24:45.447 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.api.internal.tasks.execution.PostExecutionAnalysisTaskExecuter.execute(PostExecutionAnalysisTaskExecuter.java:35)
15:24:45.447 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.api.internal.tasks.execution.SkipUpToDateTaskExecuter.execute(SkipUpToDateTaskExecuter.java:64)
15:24:45.447 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.api.internal.tasks.execution.ValidatingTaskExecuter.execute(ValidatingTaskExecuter.java:58)
15:24:45.448 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.api.internal.tasks.execution.SkipEmptySourceFilesTaskExecuter.execute(SkipEmptySourceFilesTaskExecuter.java:52)
15:24:45.448 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter.execute(SkipTaskWithNoActionsExecuter.java:52)
15:24:45.448 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.api.internal.tasks.execution.SkipOnlyIfTaskExecuter.execute(SkipOnlyIfTaskExecuter.java:53)
15:24:45.448 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.api.internal.tasks.execution.ExecuteAtMostOnceTaskExecuter.execute(ExecuteAtMostOnceTaskExecuter.java:43)
15:24:45.448 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker.execute(DefaultTaskGraphExecuter.java:203)
15:24:45.448 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker.execute(DefaultTaskGraphExecuter.java:185)
15:24:45.448 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.processtask(AbstractTaskPlanExecutor.java:66)
15:24:45.448 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.run(AbstractTaskPlanExecutor.java:50)
15:24:45.448 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor.process(DefaultTaskPlanExecutor.java:25)
15:24:45.448 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter.execute(DefaultTaskGraphExecuter.java:110)
15:24:45.448 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.execution.SelectedTaskExecutionAction.execute(SelectedTaskExecutionAction.java:37)
15:24:45.448 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:37)
15:24:45.448 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.execution.DefaultBuildExecuter.access$000(DefaultBuildExecuter.java:23)
15:24:45.448 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.execution.DefaultBuildExecuter$1.proceed(DefaultBuildExecuter.java:43)
15:24:45.448 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.execution.DryRunBuildExecutionAction.execute(DryRunBuildExecutionAction.java:32)
15:24:45.448 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:37)
15:24:45.448 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:30)
15:24:45.448 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.initialization.DefaultGradleLauncher$4.run(DefaultGradleLauncher.java:154)
15:24:45.448 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.internal.Factories$1.create(Factories.java:22)
15:24:45.448 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:90)
15:24:45.448 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:52)
15:24:45.448 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.initialization.DefaultGradleLauncher.dobuildStages(DefaultGradleLauncher.java:151)
15:24:45.448 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.initialization.DefaultGradleLauncher.access$200(DefaultGradleLauncher.java:32)
15:24:45.449 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.initialization.DefaultGradleLauncher$1.create(DefaultGradleLauncher.java:99)
15:24:45.449 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.initialization.DefaultGradleLauncher$1.create(DefaultGradleLauncher.java:93)
15:24:45.449 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:90)
15:24:45.449 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:62)
15:24:45.449 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.initialization.DefaultGradleLauncher.dobuild(DefaultGradleLauncher.java:93)
15:24:45.449 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.initialization.DefaultGradleLauncher.run(DefaultGradleLauncher.java:82)
15:24:45.449 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.launcher.exec.InProcessBuildActionExecuter$DefaultBuildController.run(InProcessBuildActionExecuter.java:94)
15:24:45.449 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.tooling.internal.provider.runner.BuildModelActionRunner.run(BuildModelActionRunner.java:46)
15:24:45.449 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.launcher.exec.ChainingBuildActionRunner.run(ChainingBuildActionRunner.java:35)
15:24:45.449 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.tooling.internal.provider.runner.SubscribableBuildActionRunner.run(SubscribableBuildActionRunner.java:58)
15:24:45.449 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.launcher.exec.ChainingBuildActionRunner.run(ChainingBuildActionRunner.java:35)
15:24:45.449 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:43)
15:24:45.449 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:28)
15:24:45.449 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.launcher.exec.ContinuousBuildActionExecuter.execute(ContinuousBuildActionExecuter.java:78)
15:24:45.449 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.launcher.exec.ContinuousBuildActionExecuter.execute(ContinuousBuildActionExecuter.java:48)
15:24:45.449 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.launcher.daemon.server.exec.ExecuteBuild.dobuild(ExecuteBuild.java:52)
15:24:45.449 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36)
15:24:45.449 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
15:24:45.449 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.launcher.daemon.server.exec.WatchFordisconnection.execute(WatchFordisconnection.java:37)
15:24:45.449 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
15:24:45.449 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.launcher.daemon.server.exec.ResetDeprecationLogger.execute(ResetDeprecationLogger.java:26)
15:24:45.449 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
15:24:45.449 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.launcher.daemon.server.exec.RequestStopIfSingleUsedDaemon.execute(RequestStopIfSingleUsedDaemon.java:34)
15:24:45.449 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
15:24:45.450 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.launcher.daemon.server.exec.ForwardClientInput$2.call(ForwardClientInput.java:74)
15:24:45.450 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.launcher.daemon.server.exec.ForwardClientInput$2.call(ForwardClientInput.java:72)
15:24:45.450 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.util.Swapper.swap(Swapper.java:38)
15:24:45.450 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.launcher.daemon.server.exec.ForwardClientInput.execute(ForwardClientInput.java:72)
15:24:45.450 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
15:24:45.450 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.launcher.daemon.server.health.DaemonHealthTracker.execute(DaemonHealthTracker.java:47)
15:24:45.450 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
15:24:45.450 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.launcher.daemon.server.exec.LogToClient.dobuild(LogToClient.java:66)
15:24:45.450 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36)
15:24:45.450 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
15:24:45.450 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.launcher.daemon.server.exec.EstablishBuildEnvironment.dobuild(EstablishBuildEnvironment.java:72)
15:24:45.450 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36)
15:24:45.450 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
15:24:45.450 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.launcher.daemon.server.health.HintGCAfterBuild.execute(HintGCAfterBuild.java:41)
15:24:45.450 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
15:24:45.450 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.launcher.daemon.server.exec.StartBuildOrRespondWithBusy$1.run(StartBuildOrRespondWithBusy.java:50)
15:24:45.450 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.launcher.daemon.server.DaemonStateCoordinator$1.run(DaemonStateCoordinator.java:246)
15:24:45.450 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:54)
15:24:45.450 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.internal.concurrent.StoppableExecutorImpl$1.run(StoppableExecutorImpl.java:40)
15:24:45.450 [ERROR] [org.gradle.BuildExceptionReporter] Caused by: java.lang.RuntimeException: java.io.IOException: Please correct the above warnings first.
15:24:45.450 [ERROR] [org.gradle.BuildExceptionReporter]    at com.android.builder.tasks.Job.awaitRethrowExceptions(Job.java:79)
15:24:45.450 [ERROR] [org.gradle.BuildExceptionReporter]    at com.android.build.gradle.internal.transforms.ProGuardTransform.transform(ProGuardTransform.java:209)
15:24:45.450 [ERROR] [org.gradle.BuildExceptionReporter]    at com.android.build.gradle.internal.pipeline.TransformTask$3.call(TransformTask.java:178)
15:24:45.450 [ERROR] [org.gradle.BuildExceptionReporter]    at com.android.build.gradle.internal.pipeline.TransformTask$3.call(TransformTask.java:174)
15:24:45.451 [ERROR] [org.gradle.BuildExceptionReporter]    at com.android.builder.profile.ThreadRecorder$1.record(ThreadRecorder.java:55)
15:24:45.451 [ERROR] [org.gradle.BuildExceptionReporter]    at com.android.builder.profile.ThreadRecorder$1.record(ThreadRecorder.java:47)
15:24:45.451 [ERROR] [org.gradle.BuildExceptionReporter]    at com.android.build.gradle.internal.pipeline.TransformTask.transform(TransformTask.java:173)
15:24:45.451 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.internal.reflect.JavaMethod.invoke(JavaMethod.java:75)
15:24:45.451 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$IncrementalTaskAction.doExecute(AnnotationProcessingTaskFactory.java:244)
15:24:45.451 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$StandardTaskAction.execute(AnnotationProcessingTaskFactory.java:220)
15:24:45.451 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$IncrementalTaskAction.execute(AnnotationProcessingTaskFactory.java:231)
15:24:45.451 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$StandardTaskAction.execute(AnnotationProcessingTaskFactory.java:209)
15:24:45.451 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeAction(ExecuteActionsTaskExecuter.java:80)
15:24:45.451 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:61)
15:24:45.451 [ERROR] [org.gradle.BuildExceptionReporter]    ... 70 more
15:24:45.451 [ERROR] [org.gradle.BuildExceptionReporter] Caused by: java.io.IOException: Please correct the above warnings first.
15:24:45.451 [ERROR] [org.gradle.BuildExceptionReporter]    at proguard.Initializer.execute(Initializer.java:473)
15:24:45.451 [ERROR] [org.gradle.BuildExceptionReporter]    at proguard.ProGuard.initialize(ProGuard.java:233)
15:24:45.451 [ERROR] [org.gradle.BuildExceptionReporter]    at proguard.ProGuard.execute(ProGuard.java:98)
15:24:45.451 [ERROR] [org.gradle.BuildExceptionReporter]    at com.android.build.gradle.internal.transforms.BaseProguardAction.runProguard(BaseProguardAction.java:52)
15:24:45.451 [ERROR] [org.gradle.BuildExceptionReporter]    at com.android.build.gradle.internal.transforms.ProGuardTransform.doMinification(ProGuardTransform.java:273)
15:24:45.451 [ERROR] [org.gradle.BuildExceptionReporter]    at com.android.build.gradle.internal.transforms.ProGuardTransform.access$000(ProGuardTransform.java:62)
15:24:45.451 [ERROR] [org.gradle.BuildExceptionReporter]    at com.android.build.gradle.internal.transforms.ProGuardTransform$1.run(ProGuardTransform.java:199)
15:24:45.451 [ERROR] [org.gradle.BuildExceptionReporter]    at com.android.builder.tasks.Job.runTask(Job.java:51)
15:24:45.451 [ERROR] [org.gradle.BuildExceptionReporter]    at com.android.build.gradle.tasks.SimpleWorkQueue$Emptythreadcontext.runTask(SimpleWorkQueue.java:41)
15:24:45.452 [ERROR] [org.gradle.BuildExceptionReporter]    at com.android.builder.tasks.WorkQueue.run(WorkQueue.java:223)
15:24:45.452 [ERROR] [org.gradle.BuildExceptionReporter]

解决方法:

使用apache http客户端的旧版本arca lib会出现此问题.但Apache http从android API 23中删除,因此需要将Acra lib更新到版本4.9.0,以便pro-guard可以在API 23上使用acra正常运行.

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