我想使用USB摄像头（uvc）和Android Studio（Windows）.我有USB摄像头库的问题“libuvccamera”.我想知道如何解决问题或任何其他方法来获得我的应用程序中的USB摄像头的视图.让我更好地解释发生了什么：
我用CameraFi应用程序（X1 E0 F1 X）测试了USB摄像头，USB摄像头被Android系统识别（并且工作正常）。
在Android Studio中搜索使用uvc（usb）摄像头后，我看到我可以使用这个库：https://github.com/saki4510t/UVCCamera .
下载此库+示例后，我尝试使用Android Studio打开（只需打开build.gradle），代码看起来不错，但当我尝试运行usbCameraTest 0（或任何其他示例）时，***构建失败（我附上构建输出）***：

• 失败：生成失败，出现异常。*
• 出了什么问题：任务“：libuvccammer：ndkBuild”执行失败。

启动进程“command”null/ndk-build. cmd时出现问题

• 尝试：使用--stacktrace选项运行以获取堆栈跟踪。使用--info或--debug选项运行以获取更多日志输出。使用--scan运行以获取完整的见解。

从https://help.gradle.org获取更多帮助
BUILD FAILED in 2s 14可操作任务：7项已执行，7项已更新
=〉如果使用--stacktrace选项运行，则得到：
失败：生成失败，出现异常。

• 出了什么问题：任务“：libuvccammer：ndkBuild”执行失败。

启动进程“command”null/ndk-build. cmd时出现问题

Exception is: org.gradle.api.tasks.TaskExecutionException: Execution failed for task ':libuvccamera:ndkBuild'. at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$3.accept(ExecuteActionsTaskExecuter.java:166) at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$3.accept(ExecuteActionsTaskExecuter.java:163) at org.gradle.internal.Try$Failure.ifSuccessfulOrElse(Try.java:191) at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute(ExecuteActionsTaskExecuter.java:156) 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:77) at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter$1.call(EventFiringTaskExecuter.java:55) at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter$1.call(EventFiringTaskExecuter.java:52) at org.gradle.internal.operations.DefaultBuildOperationExecutor$CallableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:416) at org.gradle.internal.operations.DefaultBuildOperationExecutor$CallableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:406) at org.gradle.internal.operations.DefaultBuildOperationExecutor$1.execute(DefaultBuildOperationExecutor.java:165) at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:250) at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:158) at org.gradle.internal.operations.DefaultBuildOperationExecutor.call(DefaultBuildOperationExecutor.java:102) at org.gradle.internal.operations.DelegatingBuildOperationExecutor.call(DelegatingBuildOperationExecutor.java:36) at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter.execute(EventFiringTaskExecuter.java:52) at org.gradle.execution.plan.LocalTaskNodeExecutor.execute(LocalTaskNodeExecutor.java:43) at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$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:64) at org.gradle.internal.concurrent.ManagedExecutorImpl$1.run(ManagedExecutorImpl.java:48) at org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:56) Caused by: org.gradle.process.internal.ExecException: A problem occurred starting process 'command 'null/ndk-build.cmd'' at org.gradle.process.internal.DefaultExecHandle.execExceptionFor(DefaultExecHandle.java:237) at org.gradle.process.internal.DefaultExecHandle.setEndStateInfo(DefaultExecHandle.java:214) at org.gradle.process.internal.DefaultExecHandle.failed(DefaultExecHandle.java:364) at org.gradle.process.internal.ExecHandleRunner.run(ExecHandleRunner.java:87) at org.gradle.internal.operations.CurrentBuildOperationPreservingRunnable.run(CurrentBuildOperationPreservingRunnable.java:42) ... 3 more Caused by: net.rubygrapefruit.platform.NativeException: Could not start 'null/ndk-build.cmd' at net.rubygrapefruit.platform.internal.DefaultProcessLauncher.start(DefaultProcessLauncher.java:27) at net.rubygrapefruit.platform.internal.WindowsProcessLauncher.start(WindowsProcessLauncher.java:22) at net.rubygrapefruit.platform.internal.WrapperProcessLauncher.start(WrapperProcessLauncher.java:36) at org.gradle.process.internal.ExecHandleRunner.startProcess(ExecHandleRunner.java:98) at org.gradle.process.internal.ExecHandleRunner.run(ExecHandleRunner.java:71) ... 4 more Caused by: java.io.IOException: Cannot run program "null/ndk-build.cmd" (in directory "C:\Proyectos_STUDIO\UVCCamera-master\libuvccamera"): CreateProcess error=2, El sistema no puede encontrar el archivo especificado at net.rubygrapefruit.platform.internal.DefaultProcessLauncher.start(DefaultProcessLauncher.java:25) ... 8 more Caused by: java.io.IOException: CreateProcess error=2, El sistema no puede encontrar el archivo especificado ... 9 more

• 在https://help.gradle.org获得更多帮助

BUILD FAILED in 2s 16可操作任务：3个已执行，13个已更新