Android &引用；渐变-失败：生成失败，出现异常“0”；使用终端时

我正试图直接从终端运行命令。每次运行命令时。/gradlew我都会得到上面提到的错误。我遵循了许多答案，但尚未解决问题。为了方便起见，这里是堆栈跟踪。要补充的是，我已经删除了gradle文件夹，使android studio失效并重新启动，清除了缓存，选中了，这和stackoverflow中与此问题相关的其他答案。什么都没用。请建议。谢谢

* What went wrong:
A problem occurred configuring project ':app'.

java.lang.NullPointerException（无错误消息）

由

Caused by: java.lang.NullPointerException
    at com.google.common.base.Preconditions.checkNotNull(Preconditions.java:782)
    at com.google.common.base.Splitter.split(Splitter.java:376)
    at com.android.utils.PathUtils.getClassPathItems(PathUtils.java:84)
    at com.android.build.gradle.internal.transforms.FixStackFramesTransform.<init>(FixStackFramesTransform.java:151)
    at com.android.build.gradle.internal.TaskManager.maybeCreateDesugarTask(TaskManager.java:2425)
    at com.android.build.gradle.internal.TaskManager.createPostCompilationTasks(TaskManager.java:2248)
    at com.android.build.gradle.internal.ApplicationTaskManager.addCompileTask(ApplicationTaskManager.java:295)
    at com.android.build.gradle.internal.ApplicationTaskManager.lambda$createTasksForVariantScope$12(ApplicationTaskManager.java:229)
    at com.android.builder.profile.ThreadRecorder.record(ThreadRecorder.java:81)
    at com.android.build.gradle.internal.ApplicationTaskManager.createTasksForVariantScope(ApplicationTaskManager.java:225)
    at com.android.build.gradle.internal.VariantManager.createTasksForVariantData(VariantManager.java:530)
    at com.android.build.gradle.internal.VariantManager.lambda$createAndroidTasks$1(VariantManager.java:352)
    at com.android.builder.profile.ThreadRecorder.record(ThreadRecorder.java:81)
    at com.android.build.gradle.internal.VariantManager.createAndroidTasks(VariantManager.java:348)
    at com.android.build.gradle.BasePlugin.lambda$createAndroidTasks$6(BasePlugin.java:749)
    at com.android.builder.profile.ThreadRecorder.record(ThreadRecorder.java:81)
    at com.android.build.gradle.BasePlugin.createAndroidTasks(BasePlugin.java:744)
    at com.android.build.gradle.BasePlugin.lambda$null$4(BasePlugin.java:650)
    at com.android.builder.profile.ThreadRecorder.record(ThreadRecorder.java:81)
    at com.android.build.gradle.BasePlugin.lambda$createTasks$5(BasePlugin.java:646)
    at org.gradle.internal.event.BroadcastDispatch$ActionInvocationHandler.dispatch(BroadcastDispatch.java:91)
    at org.gradle.internal.event.BroadcastDispatch$ActionInvocationHandler.dispatch(BroadcastDispatch.java:80)
    at org.gradle.internal.event.AbstractBroadcastDispatch.dispatch(AbstractBroadcastDispatch.java:42)
    at org.gradle.internal.event.BroadcastDispatch$SingletonDispatch.dispatch(BroadcastDispatch.java:230)
    at org.gradle.internal.event.BroadcastDispatch$SingletonDispatch.dispatch(BroadcastDispatch.java:149)
    at org.gradle.internal.event.AbstractBroadcastDispatch.dispatch(AbstractBroadcastDispatch.java:58)
    at org.gradle.internal.event.BroadcastDispatch$CompositeDispatch.dispatch(BroadcastDispatch.java:324)
    at org.gradle.internal.event.BroadcastDispatch$CompositeDispatch.dispatch(BroadcastDispatch.java:234)
    at org.gradle.internal.event.ListenerBroadcast.dispatch(ListenerBroadcast.java:140)
    at org.gradle.internal.event.ListenerBroadcast.dispatch(ListenerBroadcast.java:37)
    at org.gradle.internal.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:93)
    at com.sun.proxy.$Proxy26.afterEvaluate(Unknown Source)
    at org.gradle.configuration.project.LifecycleProjectEvaluator.notifyAfterEvaluate(LifecycleProjectEvaluator.java:76)
    ... 81 more

原因：java.lang.NullPointerException
位于com.google.common.base.premissions.checkNotNull（premissions.java:782）
位于com.google.common.base.Splitter.split（Splitter.java:376）
位于com.android.utils.PathUtils.getClassPathItems（PathUtils.java:84）
位于com.android.build.gradle.internal.transforms.fixstackframestrasform.（fixstackframestrasform.java:151）
位于com.android.build.gradle.internal.TaskManager.maybeCreateDesugarTask（TaskManager.java:2425）
位于com.android.build.gradle.internal.TaskManager.createPostCompilationTasks（TaskManager.java:2248）
位于com.android.build.gradle.internal.ApplicationTaskManager.addCompileTask（ApplicationTaskManager.java:295）
位于com.android.build.gradle.internal.ApplicationTaskManager.lambda$createTasksForVariantScope$12（ApplicationTaskManager.java:229）
位于com.android.builder.profile.ThreadRecorder.record（ThreadRecorder.java:81）
位于com.android.build.gradle.internal.ApplicationAskManager.createTasksForVariantScope（ApplicationAskManager.java:225）
位于com.android.build.gradle.internal.VariantManager.createTasksForVariantData（VariantManager.java:530）
位于com.android.build.gradle.internal.VariantManager.lambda$createAndroidTasks$1（VariantManager.java:352）
位于com.android.builder.profile.ThreadRecorder.record（ThreadRecorder.java:81）
位于com.android.build.gradle.internal.VariantManager.createAndroidTasks（VariantManager.java:348）
位于com.android.build.gradle.BasePlugin.lambda$createAndroidTasks$6（BasePlugin.java:749）
位于com.android.builder.profile.ThreadRecorder.record（ThreadRecorder.java:81）
位于com.android.build.gradle.BasePlugin.createAndroidTasks（BasePlugin.java:744）
位于com.android.build.gradle.BasePlugin.lambda$null$4（BasePlugin.java:650）
位于com.android.builder.profile.ThreadRecorder.record（ThreadRecorder.java:81）
位于com.android.build.gradle.BasePlugin.lambda$createTasks$5（BasePlugin.java:646）
位于org.gradle.internal.event.BroadcastDispatch$ActionInvocationHandler.dispatch（BroadcastDispatch.java:91）
位于org.gradle.internal.event.BroadcastDispatch$ActionInvocationHandler.dispatch（BroadcastDispatch.java:80）
位于org.gradle.internal.event.AbstractBroadcastDispatch.dispatch（AbstractBroadcastDispatch.java:42）
位于org.gradle.internal.event.BroadcastDispatch$SingletonDispatch.dispatch（BroadcastDispatch.java:230）
位于org.gradle.internal.event.BroadcastDispatch$SingletonDispatch.dispatch（BroadcastDispatch.java:149）
位于org.gradle.internal.event.AbstractBroadcastDispatch.dispatch（AbstractBroadcastDispatch.java:58）
位于org.gradle.internal.event.BroadcastDispatch$CompositeDispatch.dispatch（BroadcastDispatch.java:324）
在org.gradle.internal.event.BroadcastDispatch$CompositeDispatch.dispatch（BroadcastDispatch.java:234）上
位于org.gradle.internal.event.ListenerBroadcast.dispatch（ListenerBroadcast.java:140）
位于org.gradle.internal.event.ListenerBroadcast.dispatch（ListenerBroadcast.java:37）
位于org.gradle.internal.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke（ProxyDispatchAdapter.java:93）
位于com.sun.proxy.$Proxy26.afterEvaluate（未知来源）
位于org.gradle.configuration.project.LifecycleProjectEvaluator.notifyAfterEvaluate（LifecycleProjectEvaluator.java:76）
... 81多

我浏览了大量的文章、博客和帖子，以找出哪里出了问题。我还尝试降级gradle插件版本（3.1.0->3.0.0）并重新编译。我注意到，在降级之后，我面临着另一个与jdk相关的问题。我发现，我的jdk版本是10，这是后来发生的问题的原因。我将jdk版本降级为8，然后重新尝试。在此之后，gradle插件版本（3.0.0）和（3.1.0）也获得了成功

---

这个解决方案可能会帮助其他面临同样问题的人

你试过

/gradlew--没有构建守护进程吗？@PeterLedbrook，还没有。让我试试。“我会让你知道它是否有效。”彼得布鲁克，刚刚试过，结果是一样的。这里可能有什么问题？这个呢？这个答案和这个的结合帮助我找出了我的机器出了什么问题。
Caused by: java.lang.NullPointerException
    at com.google.common.base.Preconditions.checkNotNull(Preconditions.java:782)
    at com.google.common.base.Splitter.split(Splitter.java:376)
    at com.android.utils.PathUtils.getClassPathItems(PathUtils.java:84)
    at com.android.build.gradle.internal.transforms.FixStackFramesTransform.<init>(FixStackFramesTransform.java:151)
    at com.android.build.gradle.internal.TaskManager.maybeCreateDesugarTask(TaskManager.java:2425)
    at com.android.build.gradle.internal.TaskManager.createPostCompilationTasks(TaskManager.java:2248)
    at com.android.build.gradle.internal.ApplicationTaskManager.addCompileTask(ApplicationTaskManager.java:295)
    at com.android.build.gradle.internal.ApplicationTaskManager.lambda$createTasksForVariantScope$12(ApplicationTaskManager.java:229)
    at com.android.builder.profile.ThreadRecorder.record(ThreadRecorder.java:81)
    at com.android.build.gradle.internal.ApplicationTaskManager.createTasksForVariantScope(ApplicationTaskManager.java:225)
    at com.android.build.gradle.internal.VariantManager.createTasksForVariantData(VariantManager.java:530)
    at com.android.build.gradle.internal.VariantManager.lambda$createAndroidTasks$1(VariantManager.java:352)
    at com.android.builder.profile.ThreadRecorder.record(ThreadRecorder.java:81)
    at com.android.build.gradle.internal.VariantManager.createAndroidTasks(VariantManager.java:348)
    at com.android.build.gradle.BasePlugin.lambda$createAndroidTasks$6(BasePlugin.java:749)
    at com.android.builder.profile.ThreadRecorder.record(ThreadRecorder.java:81)
    at com.android.build.gradle.BasePlugin.createAndroidTasks(BasePlugin.java:744)
    at com.android.build.gradle.BasePlugin.lambda$null$4(BasePlugin.java:650)
    at com.android.builder.profile.ThreadRecorder.record(ThreadRecorder.java:81)
    at com.android.build.gradle.BasePlugin.lambda$createTasks$5(BasePlugin.java:646)
    at org.gradle.internal.event.BroadcastDispatch$ActionInvocationHandler.dispatch(BroadcastDispatch.java:91)
    at org.gradle.internal.event.BroadcastDispatch$ActionInvocationHandler.dispatch(BroadcastDispatch.java:80)
    at org.gradle.internal.event.AbstractBroadcastDispatch.dispatch(AbstractBroadcastDispatch.java:42)
    at org.gradle.internal.event.BroadcastDispatch$SingletonDispatch.dispatch(BroadcastDispatch.java:230)
    at org.gradle.internal.event.BroadcastDispatch$SingletonDispatch.dispatch(BroadcastDispatch.java:149)
    at org.gradle.internal.event.AbstractBroadcastDispatch.dispatch(AbstractBroadcastDispatch.java:58)
    at org.gradle.internal.event.BroadcastDispatch$CompositeDispatch.dispatch(BroadcastDispatch.java:324)
    at org.gradle.internal.event.BroadcastDispatch$CompositeDispatch.dispatch(BroadcastDispatch.java:234)
    at org.gradle.internal.event.ListenerBroadcast.dispatch(ListenerBroadcast.java:140)
    at org.gradle.internal.event.ListenerBroadcast.dispatch(ListenerBroadcast.java:37)
    at org.gradle.internal.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:93)
    at com.sun.proxy.$Proxy26.afterEvaluate(Unknown Source)
    at org.gradle.configuration.project.LifecycleProjectEvaluator.notifyAfterEvaluate(LifecycleProjectEvaluator.java:76)
    ... 81 more