Question

我以前没有这样的问题。但是，现在我在尝试构建项目时遇到了这个错误：

Error:Execution failed for task ':libraries:opencv:compileReleaseJavaWithJavac'.
> null value in entry: destinationDir=null

以下是我认为可能相关的更多信息：

 Starting to execute task ':libraries:opencv:generateReleaseSources'
11:12:36.146 [INFO] [org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter] Skipping task ':libraries:opencv:generateReleaseSources' as it has no actions.
11:12:36.146 [DEBUG] [org.gradle.api.internal.tasks.execution.ExecuteAtMostOnceTaskExecuter] Finished executing task ':libraries:opencv:generateReleaseSources'
11:12:36.146 [INFO] [org.gradle.execution.taskgraph.AbstractTaskPlanExecutor] :libraries:opencv:generateReleaseSources (Thread[Daemon worker Thread 8,5,main]) completed. Took 0.0 secs.
11:12:36.146 [DEBUG] [org.gradle.internal.operations.DefaultBuildOperationWorkerRegistry] Worker root.45 started (2 in use).
11:12:36.146 [INFO] [org.gradle.execution.taskgraph.AbstractTaskPlanExecutor] :libraries:opencv:incrementalReleaseJavaCompilationSafeguard (Thread[Task worker,5,main]) started.
11:12:36.146 [LIFECYCLE] [class org.gradle.internal.buildevents.TaskExecutionLogger] :libraries:opencv:incrementalReleaseJavaCompilationSafeguard
11:12:36.146 [DEBUG] [org.gradle.api.internal.tasks.execution.ExecuteAtMostOnceTaskExecuter] Starting to execute task ':libraries:opencv:incrementalReleaseJavaCompilationSafeguard'
11:12:36.147 [DEBUG] [org.gradle.internal.operations.DefaultBuildOperationWorkerRegistry] Worker root.44 completed (1 in use)
11:12:36.164 [INFO] [org.gradle.api.internal.tasks.execution.ResolveTaskArtifactStateTaskExecuter] Putting task artifact state for task ':libraries:opencv:incrementalReleaseJavaCompilationSafeguard' into context took 0.017 secs.
11:12:36.242 [DEBUG] [org.gradle.api.internal.tasks.execution.SkipUpToDateTaskExecuter] Determining if task ':libraries:opencv:incrementalReleaseJavaCompilationSafeguard' is up-to-date
11:12:36.242 [INFO] [org.gradle.api.internal.changedetection.rules.TaskTypeTaskStateChanges] Task :libraries:opencv:incrementalReleaseJavaCompilationSafeguard class loader hash: 7e6e9bf7a8a439398628229ea2c7266a
11:12:36.242 [INFO] [org.gradle.api.internal.changedetection.rules.TaskTypeTaskStateChanges] Task :libraries:opencv:incrementalReleaseJavaCompilationSafeguard actions class loader hash: 8605ffca8bc4a746469163f1432ce86d
11:12:36.349 [INFO] [org.gradle.api.internal.tasks.execution.SkipUpToDateTaskExecuter] Executing task ':libraries:opencv:incrementalReleaseJavaCompilationSafeguard' (up-to-date check took 0.107 secs) due to:
  Task ':libraries:opencv:incrementalReleaseJavaCompilationSafeguard' class path has changed from e6418cb36f855e1919b4fe4b69c7feba to 7e6e9bf7a8a439398628229ea2c7266a.
11:12:36.349 [DEBUG] [org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter] Executing actions for task ':libraries:opencv:incrementalReleaseJavaCompilationSafeguard'.
11:12:36.351 [INFO] [org.gradle.api.internal.changedetection.changes.RebuildIncrementalTaskInputs] All input files are considered out-of-date for incremental task ':libraries:opencv:incrementalReleaseJavaCompilationSafeguard'.
11:12:36.351 [DEBUG] [org.gradle.api.Task] Removing old bits to force javac non incremental mode.
11:12:36.418 [DEBUG] [org.gradle.api.internal.tasks.execution.ResolveTaskArtifactStateTaskExecuter] Removed task artifact state for {} from context.
11:12:36.418 [DEBUG] [org.gradle.api.internal.tasks.execution.ExecuteAtMostOnceTaskExecuter] Finished executing task ':libraries:opencv:incrementalReleaseJavaCompilationSafeguard'
11:12:36.419 [INFO] [org.gradle.execution.taskgraph.AbstractTaskPlanExecutor] :libraries:opencv:incrementalReleaseJavaCompilationSafeguard (Thread[Task worker,5,main]) completed. Took 0.272 secs.
11:12:36.419 [DEBUG] [org.gradle.internal.operations.DefaultBuildOperationWorkerRegistry] Worker root.46 started (2 in use).
11:12:36.419 [INFO] [org.gradle.execution.taskgraph.AbstractTaskPlanExecutor] :libraries:opencv:javaPreCompileRelease (Thread[Task worker Thread 6,5,main]) started.
11:12:36.419 [DEBUG] [org.gradle.internal.operations.DefaultBuildOperationWorkerRegistry] Worker root.45 completed (1 in use)
11:12:36.419 [LIFECYCLE] [class org.gradle.internal.buildevents.TaskExecutionLogger] :libraries:opencv:javaPreCompileRelease
11:12:36.419 [DEBUG] [org.gradle.api.internal.tasks.execution.ExecuteAtMostOnceTaskExecuter] Starting to execute task ':libraries:opencv:javaPreCompileRelease'
11:12:36.419 [INFO] [org.gradle.api.internal.tasks.execution.ResolveTaskArtifactStateTaskExecuter] Putting task artifact state for task ':libraries:opencv:javaPreCompileRelease' into context took 0.0 secs.
11:12:36.419 [DEBUG] [org.gradle.api.internal.tasks.execution.SkipUpToDateTaskExecuter] Determining if task ':libraries:opencv:javaPreCompileRelease' is up-to-date
11:12:36.419 [INFO] [org.gradle.api.internal.tasks.execution.SkipUpToDateTaskExecuter] Executing task ':libraries:opencv:javaPreCompileRelease' (up-to-date check took 0.0 secs) due to:
  Task has not declared any outputs.
11:12:36.419 [DEBUG] [org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter] Executing actions for task ':libraries:opencv:javaPreCompileRelease'.
11:12:36.424 [DEBUG] [org.gradle.api.internal.tasks.execution.ResolveTaskArtifactStateTaskExecuter] Removed task artifact state for {} from context.
11:12:36.424 [DEBUG] [org.gradle.api.internal.tasks.execution.ExecuteAtMostOnceTaskExecuter] Finished executing task ':libraries:opencv:javaPreCompileRelease'
11:12:36.424 [INFO] [org.gradle.execution.taskgraph.AbstractTaskPlanExecutor] :libraries:opencv:javaPreCompileRelease (Thread[Task worker Thread 6,5,main]) completed. Took 0.005 secs.
11:12:36.424 [DEBUG] [org.gradle.internal.operations.DefaultBuildOperationWorkerRegistry] Worker root.47 started (2 in use).
11:12:36.424 [INFO] [org.gradle.execution.taskgraph.AbstractTaskPlanExecutor] :libraries:opencv:compileReleaseJavaWithJavac (Thread[Task worker Thread 7,5,main]) started.
11:12:36.424 [DEBUG] [org.gradle.internal.operations.DefaultBuildOperationWorkerRegistry] Worker root.46 completed (1 in use)
11:12:36.424 [LIFECYCLE] [class org.gradle.internal.buildevents.TaskExecutionLogger] :libraries:opencv:compileReleaseJavaWithJavac
11:12:36.424 [DEBUG] [org.gradle.api.internal.tasks.execution.ExecuteAtMostOnceTaskExecuter] Starting to execute task ':libraries:opencv:compileReleaseJavaWithJavac'
11:12:36.436 [INFO] [org.gradle.api.internal.tasks.execution.ResolveTaskArtifactStateTaskExecuter] Putting task artifact state for task ':libraries:opencv:compileReleaseJavaWithJavac' into context took 0.011 secs.
11:12:36.561 [DEBUG] [org.gradle.api.internal.tasks.execution.SkipUpToDateTaskExecuter] Determining if task ':libraries:opencv:compileReleaseJavaWithJavac' is up-to-date
11:12:36.561 [INFO] [org.gradle.api.internal.changedetection.rules.TaskTypeTaskStateChanges] Task :libraries:opencv:compileReleaseJavaWithJavac class loader hash: 7e6e9bf7a8a439398628229ea2c7266a
11:12:36.561 [INFO] [org.gradle.api.internal.changedetection.rules.TaskTypeTaskStateChanges] Task :libraries:opencv:compileReleaseJavaWithJavac actions class loader hash: 18198991b357e4282b88db10fdb1e992
11:12:36.768 [INFO] [org.gradle.api.internal.file.collections.DirectoryFileTree] file or directory 'Q:\Malaria\AndroidProject\NLM_Malaria_Screener\libraries\opencv\src\release\java', not found
11:12:36.849 [DEBUG] [org.gradle.api.internal.tasks.execution.ResolveTaskArtifactStateTaskExecuter] Removed task artifact state for {} from context.
11:12:36.849 [DEBUG] [org.gradle.api.internal.tasks.execution.ExecuteAtMostOnceTaskExecuter] Finished executing task ':libraries:opencv:compileReleaseJavaWithJavac'
11:12:36.849 [LIFECYCLE] [class org.gradle.internal.buildevents.TaskExecutionLogger] :libraries:opencv:compileReleaseJavaWithJavac FAILED
11:12:36.849 [INFO] [org.gradle.execution.taskgraph.AbstractTaskPlanExecutor] :libraries:opencv:compileReleaseJavaWithJavac (Thread[Task worker Thread 7,5,main]) completed. Took 0.426 secs.
11:12:36.849 [DEBUG] [org.gradle.execution.taskgraph.AbstractTaskPlanExecutor] Task worker [Thread[Task worker Thread 6,5,main]] finished, busy: 0.057 secs, idle: 4.282 secs
11:12:36.849 [DEBUG] [org.gradle.execution.taskgraph.AbstractTaskPlanExecutor] Task worker [Thread[Task worker,5,main]] finished, busy: 0.402 secs, idle: 3.937 secs
11:12:36.849 [DEBUG] [org.gradle.execution.taskgraph.AbstractTaskPlanExecutor] Task worker [Thread[Task worker Thread 3,5,main]] finished, busy: 0.538 secs, idle: 3.801 secs
11:12:36.849 [DEBUG] [org.gradle.execution.taskgraph.AbstractTaskPlanExecutor] Task worker [Thread[Task worker Thread 5,5,main]] finished, busy: 0.763 secs, idle: 3.576 secs
11:12:36.849 [DEBUG] [org.gradle.execution.taskgraph.AbstractTaskPlanExecutor] Task worker [Thread[Task worker Thread 4,5,main]] finished, busy: 0.171 secs, idle: 4.168 secs
11:12:36.849 [DEBUG] [org.gradle.execution.taskgraph.AbstractTaskPlanExecutor] Task worker [Thread[Task worker Thread 2,5,main]] finished, busy: 0.573 secs, idle: 3.766 secs
11:12:36.849 [DEBUG] [org.gradle.execution.taskgraph.AbstractTaskPlanExecutor] Task worker [Thread[Daemon worker Thread 8,5,main]] finished, busy: 0.247 secs, idle: 4.092 secs
11:12:36.849 [DEBUG] [org.gradle.internal.operations.DefaultBuildOperationWorkerRegistry] Worker root.47 completed (0 in use)
11:12:36.850 [DEBUG] [org.gradle.execution.taskgraph.AbstractTaskPlanExecutor] Task worker [Thread[Task worker Thread 7,5,main]] finished, busy: 2.221 secs, idle: 2.118 secs
11:12:36.850 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]
11:12:36.850 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter] FAILURE: Build failed with an exception.
11:12:36.850 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]
11:12:36.850 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter] * What went wrong:
11:12:36.850 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter] null value in entry: destinationDir=null

我不知道“destinationDir”是什么...请告诉我问题所在的位置，谢谢！

使用“-s”：

* What went wrong:
null value in entry: destinationDir=null

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

* Exception is:
java.lang.NullPointerException: null value in entry: destinationDir=null
        at com.google.common.collect.CollectPreconditions.checkEntryNotNull(CollectPreconditions.java:33)
        at com.google.common.collect.ImmutableMap.entryOf(ImmutableMap.java:135)
        at com.google.common.collect.ImmutableMap$Builder.put(ImmutableMap.java:206)
        at com.google.common.collect.ImmutableSortedMap$Builder.put(ImmutableSortedMap.java:371)
        at org.gradle.api.internal.changedetection.state.CacheBackedTaskHistoryRepository$LazyTaskExecution.getOutputFilesSnapshot(CacheBackedTaskHistoryRepository.java:327)
        at org.gradle.api.internal.changedetection.rules.OutputFilesTaskStateChanges.getPrevious(OutputFilesTaskStateChanges.java:39)
        at org.gradle.api.internal.changedetection.rules.AbstractNamedFileSnapshotTaskStateChanges.iterator(AbstractNamedFileSnapshotTaskStateChanges.java:98)
        at org.gradle.api.internal.changedetection.rules.OutputFilesTaskStateChanges.iterator(OutputFilesTaskStateChanges.java:29)
        at org.gradle.api.internal.changedetection.rules.CachingTaskStateChanges.reset(CachingTaskStateChanges.java:79)
        at org.gradle.api.internal.changedetection.rules.CachingTaskStateChanges.iterator(CachingTaskStateChanges.java:44)
        at org.gradle.api.internal.changedetection.rules.SummaryTaskStateChanges.firstDirtyIterator(SummaryTaskStateChanges.java:63)
        at org.gradle.api.internal.changedetection.rules.SummaryTaskStateChanges.access$000(SummaryTaskStateChanges.java:25)
        at org.gradle.api.internal.changedetection.rules.SummaryTaskStateChanges$1.computeNext(SummaryTaskStateChanges.java:49)
        at org.gradle.api.internal.changedetection.rules.SummaryTaskStateChanges$1.computeNext(SummaryTaskStateChanges.java:42)
        at com.google.common.collect.AbstractIterator.tryToComputeNext(AbstractIterator.java:143)
        at com.google.common.collect.AbstractIterator.hasNext(AbstractIterator.java:138)
        at org.gradle.api.internal.changedetection.changes.DefaultTaskArtifactStateRepository$TaskArtifactStateImpl.collectChangedMessages(DefaultTaskArtifactStateRepository.java:88)
        at org.gradle.api.internal.changedetection.changes.DefaultTaskArtifactStateRepository$TaskArtifactStateImpl.isUpToDate(DefaultTaskArtifactStateRepository.java:79)
        at org.gradle.api.internal.tasks.execution.SkipUpToDateTaskExecuter.execute(SkipUpToDateTaskExecuter.java:51)
        at org.gradle.api.internal.tasks.execution.ValidatingTaskExecuter.execute(ValidatingTaskExecuter.java:58)
        at org.gradle.api.internal.tasks.execution.SkipEmptySourceFilesTaskExecuter.execute(SkipEmptySourceFilesTaskExecuter.java:88)
        at org.gradle.api.internal.tasks.execution.ResolveTaskArtifactStateTaskExecuter.execute(ResolveTaskArtifactStateTaskExecuter.java:46)
        at org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter.execute(SkipTaskWithNoActionsExecuter.java:51)
        at org.gradle.api.internal.tasks.execution.SkipOnlyIfTaskExecuter.execute(SkipOnlyIfTaskExecuter.java:54)
        at org.gradle.api.internal.tasks.execution.ExecuteAtMostOnceTaskExecuter.execute(ExecuteAtMostOnceTaskExecuter.java:43)
        at org.gradle.api.internal.tasks.execution.CatchExceptionTaskExecuter.execute(CatchExceptionTaskExecuter.java:34)
        at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker$1.execute(DefaultTaskGraphExecuter.java:236)
        at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker$1.execute(DefaultTaskGraphExecuter.java:228)
        at org.gradle.internal.Transformers$4.transform(Transformers.java:169)
        at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:106)
        at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:61)
        at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker.execute(DefaultTaskGraphExecuter.java:228)
        at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker.execute(DefaultTaskGraphExecuter.java:215)
        at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.processTask(AbstractTaskPlanExecutor.java:77)
        at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.run(AbstractTaskPlanExecutor.java:58)
        at org.gradle.execution.taskgraph.ParallelTaskPlanExecutor.process(ParallelTaskPlanExecutor.java:50)
        at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter.execute(DefaultTaskGraphExecuter.java:113)
        at org.gradle.execution.SelectedTaskExecutionAction.execute(SelectedTaskExecutionAction.java:37)
        at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:37)
        at org.gradle.execution.DefaultBuildExecuter.access$000(DefaultBuildExecuter.java:23)
        at org.gradle.execution.DefaultBuildExecuter$1.proceed(DefaultBuildExecuter.java:43)
        at org.gradle.execution.DryRunBuildExecutionAction.execute(DryRunBuildExecutionAction.java:32)
        at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:37)
        at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:30)
        at org.gradle.initialization.DefaultGradleLauncher$3.execute(DefaultGradleLauncher.java:196)
        at org.gradle.initialization.DefaultGradleLauncher$3.execute(DefaultGradleLauncher.java:193)
        at org.gradle.internal.Transformers$4.transform(Transformers.java:169)
        at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:106)
        at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:56)
        at org.gradle.initialization.DefaultGradleLauncher.doBuildStages(DefaultGradleLauncher.java:193)
        at org.gradle.initialization.DefaultGradleLauncher.doBuild(DefaultGradleLauncher.java:119)
        at org.gradle.initialization.DefaultGradleLauncher.run(DefaultGradleLauncher.java:102)
        at org.gradle.launcher.exec.GradleBuildController.run(GradleBuildController.java:71)
        at org.gradle.tooling.internal.provider.ExecuteBuildActionRunner.run(ExecuteBuildActionRunner.java:28)
        at org.gradle.launcher.exec.ChainingBuildActionRunner.run(ChainingBuildActionRunner.java:35)
        at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:41)
        at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:26)
        at org.gradle.tooling.internal.provider.ContinuousBuildActionExecuter.execute(ContinuousBuildActionExecuter.java:75)
        at org.gradle.tooling.internal.provider.ContinuousBuildActionExecuter.execute(ContinuousBuildActionExecuter.java:49)
        at org.gradle.tooling.internal.provider.ServicesSetupBuildActionExecuter.execute(ServicesSetupBuildActionExecuter.java:44)
        at org.gradle.tooling.internal.provider.ServicesSetupBuildActionExecuter.execute(ServicesSetupBuildActionExecuter.java:29)
        at org.gradle.launcher.daemon.server.exec.ExecuteBuild.doBuild(ExecuteBuild.java:67)
        at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36)
        at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
        at org.gradle.launcher.daemon.server.exec.WatchForDisconnection.execute(WatchForDisconnection.java:47)
        at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
        at org.gradle.launcher.daemon.server.exec.ResetDeprecationLogger.execute(ResetDeprecationLogger.java:26)
        at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
        at org.gradle.launcher.daemon.server.exec.RequestStopIfSingleUsedDaemon.execute(RequestStopIfSingleUsedDaemon.java:34)
        at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
        at org.gradle.launcher.daemon.server.exec.ForwardClientInput$2.call(ForwardClientInput.java:74)
        at org.gradle.launcher.daemon.server.exec.ForwardClientInput$2.call(ForwardClientInput.java:72)
        at org.gradle.util.Swapper.swap(Swapper.java:38)
        at org.gradle.launcher.daemon.server.exec.ForwardClientInput.execute(ForwardClientInput.java:72)
        at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
        at org.gradle.launcher.daemon.server.exec.LogAndCheckHealth.execute(LogAndCheckHealth.java:55)
        at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
        at org.gradle.launcher.daemon.server.exec.LogToClient.doBuild(LogToClient.java:60)
        at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36)
        at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
        at org.gradle.launcher.daemon.server.exec.EstablishBuildEnvironment.doBuild(EstablishBuildEnvironment.java:72)
        at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36)
        at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
        at org.gradle.launcher.daemon.server.exec.StartBuildOrRespondWithBusy$1.run(StartBuildOrRespondWithBusy.java:50)
        at org.gradle.launcher.daemon.server.DaemonStateCoordinator$1.run(DaemonStateCoordinator.java:297)
        at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:54)
        at org.gradle.internal.concurrent.StoppableExecutorImpl$1.run(StoppableExecutorImpl.java:40)

我有三个构建脚本：

顶级：

//顶级构建文件，您可以在其中添加所有子项目/模块共有的配置选项。

buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:2.3.1'

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        jcenter()
    }

}

应用

的OpenCV

Answer 1

我没有立即看到错误，您可以尝试删除~/.gradle/caches/和<root project dir>/.gradle/。如果这有帮助，那么Gradles缓存可能已经腐败了。

应用构建失败

1 个答案: