当为 Java 1.8 启用 jackOptions 时，Gradle 构建挂起答案

【问题标题】：Gradle build hanging when jackOptions is enabled for Java 1.8当为 Java 1.8 启用 jackOptions 时，Gradle 构建挂起
【发布时间】：2016-09-12 19:08:24
【问题描述】：

我想在我的项目中使用 lambda，所以我决定切换到 Java 1.8。 Android Studio (2.1.3) 强制我启用 jackOptions。此外，我确实在我的 Mac 上安装了 Java 1.8，当我在终端中运行 javac -version 时，我得到 javac 1.8.0_101 并且 android studio 中的 JDK 指向正确的。

当我尝试构建我的项目时，gradle 卡在： :app:compileDebugJavaWithJack

我做了以下，但没有任何效果：

gradlew 清洁
git clean -fdx 并重新导入项目
gradlew --stacktrace assemble

如果我恢复到 Java 1.7，我将失去 lambdas 功能，但项目可以正常构建。

任何想法可能是什么问题？

更新

好的，等了5多分钟终于gradle确实吐出了以下错误：

ERROR: Dex writing phase: classes.dex has too many IDs. Try using multi-dex

com.android.jack.api.v01.CompilationException: Dex writing phase: classes.dex has too many IDs. Try using multi-dex
        at com.android.jack.api.v01.impl.Api01ConfigImpl$Api01CompilationTaskImpl.run(Api01ConfigImpl.java:113)
        at com.android.builder.core.AndroidBuilder.convertByteCodeUsingJackApis(AndroidBuilder.java:1852)
        at com.android.builder.core.AndroidBuilder.convertByteCodeUsingJack(AndroidBuilder.java:1679)
        at com.android.build.gradle.internal.transforms.JackTransform.runJack(JackTransform.java:221)
        at com.android.build.gradle.internal.transforms.JackTransform.transform(JackTransform.java:195)
        at com.android.build.gradle.internal.pipeline.TransformTask$2.call(TransformTask.java:178)
        at com.android.build.gradle.internal.pipeline.TransformTask$2.call(TransformTask.java:174)
        at com.android.builder.profile.ThreadRecorder.record(ThreadRecorder.java:156)
        at com.android.build.gradle.internal.pipeline.TransformTask.transform(TransformTask.java:173)
        at sun.reflect.GeneratedMethodAccessor412.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.gradle.internal.reflect.JavaMethod.invoke(JavaMethod.java:75)
        at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$IncrementalTaskAction.doExecute(AnnotationProcessingTaskFactory.java:245)
        at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$StandardTaskAction.execute(AnnotationProcessingTaskFactory.java:221)
        at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$IncrementalTaskAction.execute(AnnotationProcessingTaskFactory.java:232)
        at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$StandardTaskAction.execute(AnnotationProcessingTaskFactory.java:210)
        at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeAction(ExecuteActionsTaskExecuter.java:80)
        at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:61)
        at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute(ExecuteActionsTaskExecuter.java:46)
        at org.gradle.api.internal.tasks.execution.PostExecutionAnalysisTaskExecuter.execute(PostExecutionAnalysisTaskExecuter.java:35)
        at org.gradle.api.internal.tasks.execution.SkipUpToDateTaskExecuter.execute(SkipUpToDateTaskExecuter.java:66)
        at org.gradle.api.internal.tasks.execution.ValidatingTaskExecuter.execute(ValidatingTaskExecuter.java:58)
        at org.gradle.api.internal.tasks.execution.SkipEmptySourceFilesTaskExecuter.execute(SkipEmptySourceFilesTaskExecuter.java:52)
        at org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter.execute(SkipTaskWithNoActionsExecuter.java:52)
        at org.gradle.api.internal.tasks.execution.SkipOnlyIfTaskExecuter.execute(SkipOnlyIfTaskExecuter.java:53)
        at org.gradle.api.internal.tasks.execution.ExecuteAtMostOnceTaskExecuter.execute(ExecuteAtMostOnceTaskExecuter.java:43)
        at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker.execute(DefaultTaskGraphExecuter.java:203)
        at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker.execute(DefaultTaskGraphExecuter.java:185)
        at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.processTask(AbstractTaskPlanExecutor.java:66)
        at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.run(AbstractTaskPlanExecutor.java:50)
        at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:54)
        at org.gradle.internal.concurrent.StoppableExecutorImpl$1.run(StoppableExecutorImpl.java:40)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at java.lang.Thread.run(Thread.java:745)
Caused by: com.android.jack.JackAbortException: Dex writing phase: classes.dex has too many IDs. Try using multi-dex
        at com.android.jack.backend.dex.DexFileWriter.run(DexFileWriter.java:90)
        at com.android.jack.backend.dex.DexFileWriter.run(DexFileWriter.java:41)
        at com.android.sched.scheduler.ScheduleInstance.runWithLog(ScheduleInstance.java:203)
        at com.android.sched.scheduler.MultiWorkersScheduleInstance$SequentialTask.process(MultiWorkersScheduleInstance.java:466)
        at com.android.sched.scheduler.MultiWorkersScheduleInstance$Worker.run(MultiWorkersScheduleInstance.java:163)
Caused by: com.android.jack.backend.dex.DexWritingException: Dex writing phase: classes.dex has too many IDs. Try using multi-dex
        at com.android.jack.backend.dex.SingleDexWritingTool.write(SingleDexWritingTool.java:59)
        at com.android.jack.backend.dex.DexFileWriter.run(DexFileWriter.java:87)
        ... 4 more
Caused by: com.android.jack.backend.dex.SingleDexOverflowException: classes.dex has too many IDs. Try using multi-dex
        ... 6 more
Caused by: com.android.jack.tools.merger.MethodIdOverflowException: Method ID overflow when trying to merge dex files
        at com.android.jack.tools.merger.ConstantManager.addDexFile(ConstantManager.java:177)
        at com.android.jack.tools.merger.JackMerger.addDexFile(JackMerger.java:69)
        at com.android.jack.backend.dex.DexWritingTool.mergeDex(DexWritingTool.java:149)
        at com.android.jack.backend.dex.SingleDexWritingTool.write(SingleDexWritingTool.java:57)
        ... 5 more
:app:transformJackWithJackForTabletsDebug FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':app:transformJackWithJackForTabletsDebug'.
> com.android.build.api.transform.TransformException: com.android.jack.api.v01.CompilationException: Dex writing phase: classes.dex has too many IDs. Try using multi-dex

所以我确实打开了 multidex，但它卡在了构建 96% > :app:transformJackWithJackForTabletsDebug

【问题讨论】：

我也有同样的问题！请有人回答这个问题:((
@HamedGh 我发现了这个link。现在正在经历它，但至少有希望:)
TanX，我问了一个类似的问题here，几个小时后找到了解决方案并回答了我自己的问题。它也可能对您有所帮助。
@HamedGh 我确实将 AS 更新到 2.2.0，但仍然没有运气。我什至将 jvmargs 设置为 2048，但 build 仍然卡在 Building 95% > :app:transformJackWithJackForTabletsDebug.
不，您应该将 Android 插件版本更新为 2.2.0 并将 Gradle 版本更新为 2.14.1，然后在构建时打开 gradle 控制台，它会显示一个警告，应该将 jvmargs 设置为什么值

标签： java android gradlew

【解决方案1】：

我通过在 app/build.gradle multiDexEnabled = true 中添加一行来解决，如下所示

android{
...
    compileSdkVersion rootProject.compileVersion
    buildToolsVersion rootProject.buildToolsVersion
    defaultConfig {
       multiDexEnabled true
    }

...
}

并在项目 build.gradle 中

buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:2.2.2'        
    }
}

allprojects {
    repositories {
        jcenter()

    }

}

ext {
    buildToolsVersion = "24.0.3"
    supportLibVersion = "24.2.1"
}

【讨论】：

还是不行。这是我提交给谷歌的票的link。我什至清除了 ~/.gradle/cache 下 gradle 的缓存文件夹。

【解决方案2】：

解决方案是将堆大小增加到 6gb 而不是 4gb。我正在构建的项目非常大，构建时间需要 30 分钟才能完成。

您可以在 gradle.properties 中增加堆大小

org.gradle.jvmargs=-Xms256m -Xmx6144m

或

dexOptions {
        javaMaxHeapSize "6g"
}

您还可以查看我向 google 提交的关于此问题的错误报告 here。

【讨论】：