第一次启动鸿蒙开发工具DevEco Studio 3以后，界面是这样的，左侧有四个按钮，第四个是Import Sample，也就是可以导入一些系统自带的例子，体验开发工具的能力。
点击“Import Sample”，出现如下界面，让选择一个想要导入的例子，在common分类下，有一个hello world，这就是我们写过无数次的那个程序啊，在鸿蒙开发工具里，写都不用写，导入就能体验，我喜欢！
选中以后点击Next按钮进入下一步，
Project name和Project location就是工程名字和保存路径了，不需要改，点击Finish应该就可以了吧？但是我这里 Finish按钮是灰色的，无法点击。
仔细一看有个提示，需要Install Git to import a sample，也就是需要安装Git才可以的，如果你安装了Git可以点击Config Git连接配置也一下Git的存放位置即可。
安装完git以后，配置一下，就可以进行下一步了。下载速度很快
下载完毕，自动加载，激动，有点小激动
 感觉跟Android studio 太相似了，哈哈
这个导入过程比Android studio快，感觉爽一些
快的原因应该就是因为这里吧
同步完以后，提示了一个错误：Cause: sdkRoot should not be empty，运行个Hello world也不顺利啊，
A problem occurred configuring root project 'HelloWorld'.
> sdkRoot should not be empty
* Try:
> Run with --info or --debug option to get more log output.
> Run with --scan to get full insights.
* Exception is:
org.gradle.api.ProjectConfigurationException: A problem occurred configuring root project 'HelloWorld'.
at org.gradle.configuration.project.LifecycleProjectEvaluator.wrapException(LifecycleProjectEvaluator.java:75)
at org.gradle.configuration.project.LifecycleProjectEvaluator.addConfigurationFailure(LifecycleProjectEvaluator.java:68)
at org.gradle.configuration.project.LifecycleProjectEvaluator.access$400(LifecycleProjectEvaluator.java:51)
at org.gradle.configuration.project.LifecycleProjectEvaluator$NotifyAfterEvaluate.run(LifecycleProjectEvaluator.java:195)
at org.gradle.internal.operations.DefaultBuildOperationRunner$1.execute(DefaultBuildOperationRunner.java:29)
at org.gradle.internal.operations.DefaultBuildOperationRunner$1.execute(DefaultBuildOperationRunner.java:26)
at org.gradle.internal.operations.DefaultBuildOperationRunner$2.execute(DefaultBuildOperationRunner.java:66)
at org.gradle.internal.operations.DefaultBuildOperationRunner$2.execute(DefaultBuildOperationRunner.java:59)
at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:157)
at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:59)
at org.gradle.internal.operations.DefaultBuildOperationRunner.run(DefaultBuildOperationRunner.java:47)
at org.gradle.internal.operations.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:68)
at org.gradle.configuration.project.LifecycleProjectEvaluator$EvaluateProject.lambda$run$0(LifecycleProjectEvaluator.java:105)
at org.gradle.api.internal.project.DefaultProjectStateRegistry$ProjectStateImpl.lambda$applyToMutableState$0(DefaultProjectStateRegistry.java:366)
at org.gradle.api.internal.project.DefaultProjectStateRegistry$ProjectStateImpl.lambda$withProjectLock$3(DefaultProjectStateRegistry.java:426)
at org.gradle.internal.work.DefaultWorkerLeaseService.withLocks(DefaultWorkerLeaseService.java:211)
at org.gradle.api.internal.project.DefaultProjectStateRegistry$ProjectStateImpl.withProjectLock(DefaultProjectStateRegistry.java:426)
at org.gradle.api.internal.project.DefaultProjectStateRegistry$ProjectStateImpl.fromMutableState(DefaultProjectStateRegistry.java:407)
at org.gradle.api.internal.project.DefaultProjectStateRegistry$ProjectStateImpl.applyToMutableState(DefaultProjectStateRegistry.java:365)
at org.gradle.configuration.project.LifecycleProjectEvaluator$EvaluateProject.run(LifecycleProjectEvaluator.java:91)
at org.gradle.internal.operations.DefaultBuildOperationRunner$1.execute(DefaultBuildOperationRunner.java:29)
at org.gradle.internal.operations.DefaultBuildOperationRunner$1.execute(DefaultBuildOperationRunner.java:26)
at org.gradle.internal.operations.DefaultBuildOperationRunner$2.execute(DefaultBuildOperationRunner.java:66)
at org.gradle.internal.operations.DefaultBuildOperationRunner$2.execute(DefaultBuildOperationRunner.java:59)
at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:157)
at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:59)
at org.gradle.internal.operations.DefaultBuildOperationRunner.run(DefaultBuildOperationRunner.java:47)
at org.gradle.internal.operations.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:68)
at org.gradle.configuration.project.LifecycleProjectEvaluator.evaluate(LifecycleProjectEvaluator.java:63)
at org.gradle.api.internal.project.DefaultProject.evaluate(DefaultProject.java:751)
at org.gradle.api.internal.project.DefaultProject.evaluate(DefaultProject.java:151)
at org.gradle.api.internal.project.DefaultProjectStateRegistry$ProjectStateImpl.ensureConfigured(DefaultProjectStateRegistry.java:339)
at org.gradle.execution.TaskPathProjectEvaluator.configure(TaskPathProjectEvaluator.java:41)
at org.gradle.execution.TaskPathProjectEvaluator.configureHierarchy(TaskPathProjectEvaluator.java:55)
at org.gradle.configuration.DefaultProjectsPreparer.prepareProjects(DefaultProjectsPreparer.java:48)
at org.gradle.configuration.BuildTreePreparingProjectsPreparer.prepareProjects(BuildTreePreparingProjectsPreparer.java:64)
at org.gradle.configuration.BuildOperationFiringProjectsPreparer$ConfigureBuild.run(BuildOperationFiringProjectsPreparer.java:52)
at org.gradle.internal.operations.DefaultBuildOperationRunner$1.execute(DefaultBuildOperationRunner.java:29)
at org.gradle.internal.operations.DefaultBuildOperationRunner$1.execute(DefaultBuildOperationRunner.java:26)
at org.gradle.internal.operations.DefaultBuildOperationRunner$2.execute(DefaultBuildOperationRunner.java:66)
at org.gradle.internal.operations.DefaultBuildOperationRunner$2.execute(DefaultBuildOperationRunner.java:59)
at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:157)
at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:59)
at org.gradle.internal.operations.DefaultBuildOperationRunner.run(DefaultBuildOperationRunner.java:47)
at org.gradle.internal.operations.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:68)
at org.gradle.configuration.BuildOperationFiringProjectsPreparer.prepareProjects(BuildOperationFiringProjectsPreparer.java:40)
at org.gradle.initialization.VintageBuildModelController.lambda$prepareProjects$1(VintageBuildModelController.java:93)
at org.gradle.internal.build.StateTransitionController.lambda$doTransition$1(StateTransitionController.java:222)
at org.gradle.internal.build.StateTransitionController.doTransition(StateTransitionController.java:243)
at org.gradle.internal.build.StateTransitionController.doTransition(StateTransitionController.java:221)
at org.gradle.internal.build.StateTransitionController.transitionIfNotPreviously(StateTransitionController.java:190)
at org.gradle.initialization.VintageBuildModelController.prepareProjects(VintageBuildModelController.java:93)
at org.gradle.initialization.VintageBuildModelController.doBuildStages(VintageBuildModelController.java:77)
at org.gradle.initialization.VintageBuildModelController.getConfiguredModel(VintageBuildModelController.java:58)
at org.gradle.internal.build.StateTransitionController.notInStateIgnoreOtherThreads(StateTransitionController.java:89)
at org.gradle.internal.build.DefaultBuildLifecycleController.getConfiguredBuild(DefaultBuildLifecycleController.java:98)
at org.gradle.internal.build.AbstractBuildState.ensureProjectsConfigured(AbstractBuildState.java:65)
at org.gradle.internal.buildtree.DefaultBuildTreeModelCreator$DefaultBuildToolingModelController.locateBuilderForTarget(DefaultBuildTreeModelCreator.java:90)
at org.gradle.internal.buildtree.DefaultBuildTreeModelCreator$DefaultBuildToolingModelController.locateBuilderForDefaultTarget(DefaultBuildTreeModelCreator.java:82)
at org.gradle.tooling.internal.provider.runner.DefaultBuildController$DefaultTargetModel.locate(DefaultBuildController.java:239)
at org.gradle.tooling.internal.provider.runner.DefaultBuildController.getToolingModelBuilder(DefaultBuildController.java:184)
at org.gradle.tooling.internal.provider.runner.DefaultBuildController.getModel(DefaultBuildController.java:98)
at org.gradle.tooling.internal.consumer.connection.ParameterAwareBuildControllerAdapter.getModel(ParameterAwareBuildControllerAdapter.java:39)
at org.gradle.tooling.internal.consumer.connection.UnparameterizedBuildController.getModel(UnparameterizedBuildController.java:113)
at org.gradle.tooling.internal.consumer.connection.NestedActionAwareBuildControllerAdapter.getModel(NestedActionAwareBuildControllerAdapter.java:31)
at org.gradle.tooling.internal.consumer.connection.UnparameterizedBuildController.findModel(UnparameterizedBuildController.java:97)
at org.gradle.tooling.internal.consumer.connection.NestedActionAwareBuildControllerAdapter.findModel(NestedActionAwareBuildControllerAdapter.java:31)
at org.gradle.tooling.internal.consumer.connection.UnparameterizedBuildController.findModel(UnparameterizedBuildController.java:81)
at org.gradle.tooling.internal.consumer.connection.NestedActionAwareBuildControllerAdapter.findModel(NestedActionAwareBuildControllerAdapter.java:31)
at org.gradle.tooling.internal.consumer.connection.UnparameterizedBuildController.findModel(UnparameterizedBuildController.java:66)
at org.gradle.tooling.internal.consumer.connection.NestedActionAwareBuildControllerAdapter.findModel(NestedActionAwareBuildControllerAdapter.java:31)
at org.jetbrains.plugins.gradle.model.ProjectImportAction.execute(ProjectImportAction.java:116)
at org.jetbrains.plugins.gradle.model.ProjectImportAction.execute(ProjectImportAction.java:42)
at org.gradle.tooling.internal.consumer.connection.InternalBuildActionAdapter.execute(InternalBuildActionAdapter.java:64)
at org.gradle.tooling.internal.provider.runner.AbstractClientProvidedBuildActionRunner$ActionAdapter.runAction(AbstractClientProvidedBuildActionRunner.java:131)
at org.gradle.tooling.internal.provider.runner.AbstractClientProvidedBuildActionRunner$ActionAdapter.beforeTasks(AbstractClientProvidedBuildActionRunner.java:99)
at org.gradle.internal.buildtree.DefaultBuildTreeModelCreator.beforeTasks(DefaultBuildTreeModelCreator.java:57)
at org.gradle.internal.buildtree.DefaultBuildTreeLifecycleController.lambda$fromBuildModel$1(DefaultBuildTreeLifecycleController.java:72)
at org.gradle.internal.buildtree.DefaultBuildTreeLifecycleController.lambda$runBuild$4(DefaultBuildTreeLifecycleController.java:103)
at org.gradle.internal.build.StateTransitionController.lambda$transition$0(StateTransitionController.java:145)
at org.gradle.internal.build.StateTransitionController.doTransition(StateTransitionController.java:243)
at org.gradle.internal.build.StateTransitionController.transition(StateTransitionController.java:145)
at org.gradle.internal.buildtree.DefaultBuildTreeLifecycleController.runBuild(DefaultBuildTreeLifecycleController.java:100)
at org.gradle.internal.buildtree.DefaultBuildTreeLifecycleController.fromBuildModel(DefaultBuildTreeLifecycleController.java:71)
at org.gradle.tooling.internal.provider.runner.AbstractClientProvidedBuildActionRunner.runClientAction(AbstractClientProvidedBuildActionRunner.java:43)
at org.gradle.tooling.internal.provider.runner.ClientProvidedPhasedActionRunner.run(ClientProvidedPhasedActionRunner.java:53)
at org.gradle.launcher.exec.ChainingBuildActionRunner.run(ChainingBuildActionRunner.java:35)
at org.gradle.internal.buildtree.ProblemReportingBuildActionRunner.run(ProblemReportingBuildActionRunner.java:49)
at org.gradle.launcher.exec.BuildOutcomeReportingBuildActionRunner.run(BuildOutcomeReportingBuildActionRunner.java:69)
at org.gradle.tooling.internal.provider.FileSystemWatchingBuildActionRunner.run(FileSystemWatchingBuildActionRunner.java:114)
at org.gradle.launcher.exec.BuildCompletionNotifyingBuildActionRunner.run(BuildCompletionNotifyingBuildActionRunner.java:41)
at org.gradle.launcher.exec.RootBuildLifecycleBuildActionExecutor.lambda$execute$0(RootBuildLifecycleBuildActionExecutor.java:40)
at org.gradle.composite.internal.DefaultRootBuildState.run(DefaultRootBuildState.java:155)
at org.gradle.launcher.exec.RootBuildLifecycleBuildActionExecutor.execute(RootBuildLifecycleBuildActionExecutor.java:40)
at org.gradle.internal.buildtree.DefaultBuildTreeContext.execute(DefaultBuildTreeContext.java:40)
at org.gradle.launcher.exec.BuildTreeLifecycleBuildActionExecutor.lambda$execute$0(BuildTreeLifecycleBuildActionExecutor.java:65)
at org.gradle.internal.buildtree.BuildTreeState.run(BuildTreeState.java:53)
at org.gradle.launcher.exec.BuildTreeLifecycleBuildActionExecutor.execute(BuildTreeLifecycleBuildActionExecutor.java:65)
at org.gradle.launcher.exec.RunAsBuildOperationBuildActionExecutor$3.call(RunAsBuildOperationBuildActionExecutor.java:61)
at org.gradle.launcher.exec.RunAsBuildOperationBuildActionExecutor$3.call(RunAsBuildOperationBuildActionExecutor.java:57)
at org.gradle.internal.operations.DefaultBuildOperationRunner$CallableBuildOperationWorker.execute(DefaultBuildOperationRunner.java:204)
at org.gradle.internal.operations.DefaultBuildOperationRunner$CallableBuildOperationWorker.execute(DefaultBuildOperationRunner.java:199)
at org.gradle.internal.operations.DefaultBuildOperationRunner$2.execute(DefaultBuildOperationRunner.java:66)
at org.gradle.internal.operations.DefaultBuildOperationRunner$2.execute(DefaultBuildOperationRunner.java:59)
at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:157)
at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:59)
at org.gradle.internal.operations.DefaultBuildOperationRunner.call(DefaultBuildOperationRunner.java:53)
at org.gradle.internal.operations.DefaultBuildOperationExecutor.call(DefaultBuildOperationExecutor.java:73)
at org.gradle.launcher.exec.RunAsBuildOperationBuildActionExecutor.execute(RunAsBuildOperationBuildActionExecutor.java:57)
at org.gradle.launcher.exec.RunAsWorkerThreadBuildActionExecutor.lambda$execute$0(RunAsWorkerThreadBuildActionExecutor.java:38)
at org.gradle.internal.work.DefaultWorkerLeaseService.withLocks(DefaultWorkerLeaseService.java:211)
at org.gradle.launcher.exec.RunAsWorkerThreadBuildActionExecutor.execute(RunAsWorkerThreadBuildActionExecutor.java:38)
at org.gradle.tooling.internal.provider.ContinuousBuildActionExecutor.execute(ContinuousBuildActionExecutor.java:103)
at org.gradle.tooling.internal.provider.SubscribableBuildActionExecutor.execute(SubscribableBuildActionExecutor.java:64)
at org.gradle.internal.session.DefaultBuildSessionContext.execute(DefaultBuildSessionContext.java:46)
at org.gradle.tooling.internal.provider.BuildSessionLifecycleBuildActionExecuter$ActionImpl.apply(BuildSessionLifecycleBuildActionExecuter.java:100)
at org.gradle.tooling.internal.provider.BuildSessionLifecycleBuildActionExecuter$ActionImpl.apply(BuildSessionLifecycleBuildActionExecuter.java:88)
at org.gradle.internal.session.BuildSessionState.run(BuildSessionState.java:69)
at org.gradle.tooling.internal.provider.BuildSessionLifecycleBuildActionExecuter.execute(BuildSessionLifecycleBuildActionExecuter.java:62)
at org.gradle.tooling.internal.provider.BuildSessionLifecycleBuildActionExecuter.execute(BuildSessionLifecycleBuildActionExecuter.java:41)
at org.gradle.tooling.internal.provider.GradleThreadBuildActionExecuter.execute(GradleThreadBuildActionExecuter.java:36)
at org.gradle.tooling.internal.provider.GradleThreadBuildActionExecuter.execute(GradleThreadBuildActionExecuter.java:25)
at org.gradle.tooling.internal.provider.StartParamsValidatingActionExecuter.execute(StartParamsValidatingActionExecuter.java:63)
at org.gradle.tooling.internal.provider.StartParamsValidatingActionExecuter.execute(StartParamsValidatingActionExecuter.java:31)
at org.gradle.tooling.internal.provider.SessionFailureReportingActionExecuter.execute(SessionFailureReportingActionExecuter.java:58)
at org.gradle.tooling.internal.provider.SessionFailureReportingActionExecuter.execute(SessionFailureReportingActionExecuter.java:42)
at org.gradle.tooling.internal.provider.SetupLoggingActionExecuter.execute(SetupLoggingActionExecuter.java:47)
at org.gradle.tooling.internal.provider.SetupLoggingActionExecuter.execute(SetupLoggingActionExecuter.java:31)
at org.gradle.launcher.daemon.server.exec.ExecuteBuild.doBuild(ExecuteBuild.java:65)
at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:37)
at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:104)
at org.gradle.launcher.daemon.server.exec.WatchForDisconnection.execute(WatchForDisconnection.java:39)
at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:104)
at org.gradle.launcher.daemon.server.exec.ResetDeprecationLogger.execute(ResetDeprecationLogger.java:29)
at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:104)
at org.gradle.launcher.daemon.server.exec.RequestStopIfSingleUsedDaemon.execute(RequestStopIfSingleUsedDaemon.java:35)
at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:104)
at org.gradle.launcher.daemon.server.exec.ForwardClientInput$2.create(ForwardClientInput.java:78)
at org.gradle.launcher.daemon.server.exec.ForwardClientInput$2.create(ForwardClientInput.java:75)
at org.gradle.util.internal.Swapper.swap(Swapper.java:38)
at org.gradle.launcher.daemon.server.exec.ForwardClientInput.execute(ForwardClientInput.java:75)
at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:104)
at org.gradle.launcher.daemon.server.exec.LogAndCheckHealth.execute(LogAndCheckHealth.java:55)
at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:104)
at org.gradle.launcher.daemon.server.exec.LogToClient.doBuild(LogToClient.java:63)
at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:37)
at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:104)
at org.gradle.launcher.daemon.server.exec.EstablishBuildEnvironment.doBuild(EstablishBuildEnvironment.java:84)
at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:37)
at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:104)
at org.gradle.launcher.daemon.server.exec.StartBuildOrRespondWithBusy$1.run(StartBuildOrRespondWithBusy.java:52)
at org.gradle.launcher.daemon.server.DaemonStateCoordinator$1.run(DaemonStateCoordinator.java:297)
at org.gradle.internal.concurrent.ExecutorPolicy$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:61)
Caused by: java.lang.IllegalStateException: sdkRoot should not be empty（省略一大堆错误提示）
不知道为啥，SDK有两个，刚才安装了一个，还需要安装另外一个，我新建一个项目的时候，出现了这个提示，我才意识到这个问题
在设置中也确实看到了第二个sdk的配置
没什么可说的，安装呗，不安装运行不了
 
一顿操作猛如虎，安装完了可以正常编译了
下一步是运行，没有实体设备的话，需要先添加一个虚拟机，点击tools，device manage打开设备管理器
选择phone以后，点install，打开安装界面
又是几分钟的等待，安装完毕以后，点new emulator，添加新设备
我选择安装huawei_phone
点下载符号，首先夏赞系统镜像文件，才能进行下一步，还是等待，等待
安装设备完成
登录华为账号以后，还可以使用远程设备进行测试
 还是远程设备比较爽，我选了tv，看着跟家里真的电视一样
到现在为止还是没运行成功，因为我还不知道怎么调试到虚拟机中。。。。。
放弃折腾这个导入的版本，直接新建了一个
预览页面可以正常预览
使用虚拟机运行遇到错误，磁盘空间不足了，至少需要10G剩余空间。。。。
没找到在哪里可以设置这个路径，放弃本地虚拟机，选择远程设备
运行成功
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