Gradle 同步失败无法获取“https://dl.google.com/dl/android/maven2/com/android/tools/build/gradle/3.1.3/gradle-3.1.3.pom”

【问题标题】：Gradle Sync Failed Could not GET 'https://dl.google.com/dl/android/maven2/com/android/tools/build/gradle/3.1.3/gradle-3.1.3.pom'Gradle 同步失败无法获取“https://dl.google.com/dl/android/maven2/com/android/tools/build/gradle/3.1.3/gradle-3.1.3.pom”
【发布时间】：2019-03-07 08:02:31
【问题描述】：

我无法在 Android Studio 中构建项目，并且收到以下错误。

  1. Gradle 同步失败。
  2. 无法 GET 'https://dl.google.com/dl/android/maven2/com/android/tools/build/gradle/3.1.3/gradle-3.1.3.pom'
  3. 无法 GET 'https://jcenter.bintray.com/com/android/tools/build/gradle/3.1.3/gradle-3.1.3.pom'

这是我已经尝试过的：

我已将以下内容更新为最新可用版本：

  1. Android SDK 构建工具
  2. Android SDK 平台工具
  3. Android SDK 工具

Build.gradle 文件内容

错误截图：

错误详情：

 org.gradle.internal.resource.transport.http.HttpRequestException: Could not GET 'https://dl.google.com/dl/android/maven2/com/android/tools/build/gradle/3.1.3/gradle-3.1.3.pom'.
    at org.gradle.internal.resource.transport.http.HttpClientHelper.performRequest(HttpClientHelper.java:96)
    at org.gradle.internal.resource.transport.http.HttpClientHelper.performRawGet(HttpClientHelper.java:80)
    at org.gradle.internal.resource.transport.http.HttpClientHelper.performGet(HttpClientHelper.java:84)
    at org.gradle.internal.resource.transport.http.HttpResourceAccessor.openResource(HttpResourceAccessor.java:43)
    at org.gradle.internal.resource.transport.http.HttpResourceAccessor.openResource(HttpResourceAccessor.java:29)
    at org.gradle.internal.resource.transfer.DefaultExternalResourceConnector.openResource(DefaultExternalResourceConnector.java:56)
    at org.gradle.internal.resource.transfer.ProgressLoggingExternalResourceAccessor.openResource(ProgressLoggingExternalResourceAccessor.java:36)
    at org.gradle.internal.resource.transfer.AccessorBackedExternalResource.withContentIfPresent(AccessorBackedExternalResource.java:130)
    at org.gradle.internal.resource.BuildOperationFiringExternalResourceDecorator$11.call(BuildOperationFiringExternalResourceDecorator.java:237)
    at org.gradle.internal.resource.BuildOperationFiringExternalResourceDecorator$11.call(BuildOperationFiringExternalResourceDecorator.java:229)
    at org.gradle.internal.progress.DefaultBuildOperationExecutor$CallableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:350)
    at org.gradle.internal.progress.DefaultBuildOperationExecutor$CallableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:340)
    at org.gradle.internal.progress.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:199)
    at org.gradle.internal.progress.DefaultBuildOperationExecutor.call(DefaultBuildOperationExecutor.java:120)
    at org.gradle.internal.resource.BuildOperationFiringExternalResourceDecorator.withContentIfPresent(BuildOperationFiringExternalResourceDecorator.java:229)
    at org.gradle.internal.resource.transfer.DefaultCacheAwareExternalResourceAccessor.copyToCache(DefaultCacheAwareExternalResourceAccessor.java:199)
    at org.gradle.internal.resource.transfer.DefaultCacheAwareExternalResourceAccessor.access$300(DefaultCacheAwareExternalResourceAccessor.java:55)
    at org.gradle.internal.resource.transfer.DefaultCacheAwareExternalResourceAccessor$1.create(DefaultCacheAwareExternalResourceAccessor.java:90)
    at org.gradle.internal.resource.transfer.DefaultCacheAwareExternalResourceAccessor$1.create(DefaultCacheAwareExternalResourceAccessor.java:82)
    at org.gradle.cache.internal.ProducerGuard$AdaptiveProducerGuard.guardByKey(ProducerGuard.java:97)
    at org.gradle.internal.resource.transfer.DefaultCacheAwareExternalResourceAccessor.getResource(DefaultCacheAwareExternalResourceAccessor.java:82)
    at org.gradle.api.internal.artifacts.repositories.resolver.DefaultExternalResourceArtifactResolver.downloadByCoords(DefaultExternalResourceArtifactResolver.java:129)
    at org.gradle.api.internal.artifacts.repositories.resolver.DefaultExternalResourceArtifactResolver.downloadStaticResource(DefaultExternalResourceArtifactResolver.java:95)
    at org.gradle.api.internal.artifacts.repositories.resolver.DefaultExternalResourceArtifactResolver.resolveArtifact(DefaultExternalResourceArtifactResolver.java:65)
    at org.gradle.api.internal.artifacts.repositories.resolver.ExternalResourceResolver.parseMetaDataFromArtifact(ExternalResourceResolver.java:216)
    at org.gradle.api.internal.artifacts.repositories.resolver.MavenResolver.parseMetaDataFromArtifact(MavenResolver.java:170)
    at org.gradle.api.internal.artifacts.repositories.resolver.MavenResolver.parseMetaDataFromArtifact(MavenResolver.java:65)
    at org.gradle.api.internal.artifacts.repositories.resolver.ExternalResourceResolver.resolveStaticDependency(ExternalResourceResolver.java:193)
    at org.gradle.api.internal.artifacts.repositories.resolver.MavenResolver.doResolveComponentMetaData(MavenResolver.java:145)
    at org.gradle.api.internal.artifacts.repositories.resolver.ExternalResourceResolver$RemoteRepositoryAccess.resolveComponentMetaData(ExternalResourceResolver.java:467)
    at org.gradle.api.internal.artifacts.ivyservice.ivyresolve.CachingModuleComponentRepository$ResolveAndCacheRepositoryAccess.resolveComponentMetaData(CachingModuleComponentRepository.java:363)
    at org.gradle.api.internal.artifacts.ivyservice.ivyresolve.BaseModuleComponentRepositoryAccess.resolveComponentMetaData(BaseModuleComponentRepositoryAccess.java:50)
    at org.gradle.api.internal.artifacts.ivyservice.ivyresolve.memcache.InMemoryCachedModuleComponentRepository$CachedAccess.resolveComponentMetaData(InMemoryCachedModuleComponentRepository.java:95)
    at org.gradle.api.internal.artifacts.ivyservice.ivyresolve.ErrorHandlingModuleComponentRepository$ErrorHandlingModuleComponentRepositoryAccess.resolveComponentMetaData(ErrorHandlingModuleComponentRepository.java:126)
    at org.gradle.api.internal.artifacts.ivyservice.ivyresolve.ComponentMetaDataResolveState.process(ComponentMetaDataResolveState.java:66)
    at org.gradle.api.internal.artifacts.ivyservice.ivyresolve.ComponentMetaDataResolveState.resolve(ComponentMetaDataResolveState.java:58)
    at org.gradle.api.internal.artifacts.ivyservice.ivyresolve.RepositoryChainComponentMetaDataResolver.findBestMatch(RepositoryChainComponentMetaDataResolver.java:138)
    at org.gradle.api.internal.artifacts.ivyservice.ivyresolve.RepositoryChainComponentMetaDataResolver.findBestMatch(RepositoryChainComponentMetaDataResolver.java:119)
    at org.gradle.api.internal.artifacts.ivyservice.ivyresolve.RepositoryChainComponentMetaDataResolver.resolveModule(RepositoryChainComponentMetaDataResolver.java:92)
    at org.gradle.api.internal.artifacts.ivyservice.ivyresolve.RepositoryChainComponentMetaDataResolver.resolve(RepositoryChainComponentMetaDataResolver.java:63)
    at org.gradle.api.internal.artifacts.ivyservice.resolveengine.ComponentResolversChain$ComponentMetaDataResolverChain.resolve(ComponentResolversChain.java:93)
    at org.gradle.api.internal.artifacts.ivyservice.clientmodule.ClientModuleResolver.resolve(ClientModuleResolver.java:48)
    at org.gradle.api.internal.artifacts.ivyservice.resolveengine.graph.builder.ComponentState.resolve(ComponentState.java:157)
    at org.gradle.api.internal.artifacts.ivyservice.resolveengine.graph.builder.ComponentState.getMetaData(ComponentState.java:168)
    at org.gradle.api.internal.artifacts.ivyservice.resolveengine.graph.builder.EdgeState.calculateTargetConfigurations(EdgeState.java:134)
    at org.gradle.api.internal.artifacts.ivyservice.resolveengine.graph.builder.EdgeState.attachToTargetConfigurations(EdgeState.java:105)
    at org.gradle.api.internal.artifacts.ivyservice.resolveengine.graph.builder.DependencyGraphBuilder.attachToTargetRevisionsSerially(DependencyGraphBuilder.java:239)
    at org.gradle.api.internal.artifacts.ivyservice.resolveengine.graph.builder.DependencyGraphBuilder.resolveEdges(DependencyGraphBuilder.java:229)
    at org.gradle.api.internal.artifacts.ivyservice.resolveengine.graph.builder.DependencyGraphBuilder.traverseGraph(DependencyGraphBuilder.java:143)
    at org.gradle.api.internal.artifacts.ivyservice.resolveengine.graph.builder.DependencyGraphBuilder.resolve(DependencyGraphBuilder.java:109)
    at org.gradle.api.internal.artifacts.ivyservice.resolveengine.DefaultArtifactDependencyResolver.resolve(DefaultArtifactDependencyResolver.java:90)
    at org.gradle.api.internal.artifacts.ivyservice.DefaultConfigurationResolver.resolveGraph(DefaultConfigurationResolver.java:146)
    at org.gradle.api.internal.artifacts.ivyservice.ShortCircuitEmptyConfigurationResolver.resolveGraph(ShortCircuitEmptyConfigurationResolver.java:73)
    at org.gradle.api.internal.artifacts.ivyservice.ErrorHandlingConfigurationResolver.resolveGraph(ErrorHandlingConfigurationResolver.java:66)
    at org.gradle.api.internal.artifacts.configurations.DefaultConfiguration$4.run(DefaultConfiguration.java:483)
    at org.gradle.internal.progress.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:336)
    at org.gradle.internal.progress.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:328)
    at org.gradle.internal.progress.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:199)
    at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:110)
    at org.gradle.api.internal.artifacts.configurations.DefaultConfiguration.resolveGraphIfRequired(DefaultConfiguration.java:474)
    at org.gradle.api.internal.artifacts.configurations.DefaultConfiguration.resolveToStateOrLater(DefaultConfiguration.java:459)
    at org.gradle.api.internal.artifacts.configurations.DefaultConfiguration.access$1700(DefaultConfiguration.java:116)
    at org.gradle.api.internal.artifacts.configurations.DefaultConfiguration$ConfigurationFileCollection.getSelectedArtifacts(DefaultConfiguration.java:901)
    at org.gradle.api.internal.artifacts.configurations.DefaultConfiguration$ConfigurationFileCollection.getFiles(DefaultConfiguration.java:889)
    at org.gradle.api.internal.artifacts.configurations.DefaultConfiguration.getFiles(DefaultConfiguration.java:404)
    at org.gradle.api.internal.artifacts.configurations.DefaultConfiguration_Decorated.getFiles(Unknown Source)
    at org.gradle.api.internal.file.AbstractFileCollection.iterator(AbstractFileCollection.java:68)
    at org.gradle.internal.classpath.DefaultClassPath.<init>(DefaultClassPath.java:48)
    at org.gradle.api.internal.initialization.DefaultScriptClassPathResolver.resolveClassPath(DefaultScriptClassPathResolver.java:39)
    at org.gradle.api.internal.initialization.DefaultScriptHandler.getScriptClassPath(DefaultScriptHandler.java:72)
    at org.gradle.plugin.use.internal.DefaultPluginRequestApplicator.defineScriptHandlerClassScope(DefaultPluginRequestApplicator.java:204)
    at org.gradle.plugin.use.internal.DefaultPluginRequestApplicator.applyPlugins(DefaultPluginRequestApplicator.java:82)
    at org.gradle.configuration.DefaultScriptPluginFactory$ScriptPluginImpl.apply(DefaultScriptPluginFactory.java:179)
    at org.gradle.configuration.BuildOperationScriptPlugin$1.run(BuildOperationScriptPlugin.java:61)
    at org.gradle.internal.progress.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:336)
    at org.gradle.internal.progress.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:328)
    at org.gradle.internal.progress.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:199)
    at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:110)
    at org.gradle.configuration.BuildOperationScriptPlugin.apply(BuildOperationScriptPlugin.java:58)
    at org.gradle.configuration.project.BuildScriptProcessor.execute(BuildScriptProcessor.java:41)
    at org.gradle.configuration.project.BuildScriptProcessor.execute(BuildScriptProcessor.java:26)
    at org.gradle.configuration.project.ConfigureActionsProjectEvaluator.evaluate(ConfigureActionsProjectEvaluator.java:34)
    at org.gradle.configuration.project.LifecycleProjectEvaluator.doConfigure(LifecycleProjectEvaluator.java:64)
    at org.gradle.configuration.project.LifecycleProjectEvaluator.access$100(LifecycleProjectEvaluator.java:34)
    at org.gradle.configuration.project.LifecycleProjectEvaluator$ConfigureProject.run(LifecycleProjectEvaluator.java:110)
    at org.gradle.internal.progress.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:336)
    at org.gradle.internal.progress.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:328)
    at org.gradle.internal.progress.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:199)
    at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:110)
    at org.gradle.configuration.project.LifecycleProjectEvaluator.evaluate(LifecycleProjectEvaluator.java:50)
    at org.gradle.api.internal.project.DefaultProject.evaluate(DefaultProject.java:666)
    at org.gradle.api.internal.project.DefaultProject.evaluate(DefaultProject.java:135)
    at org.gradle.execution.TaskPathProjectEvaluator.configure(TaskPathProjectEvaluator.java:35)
    at org.gradle.execution.TaskPathProjectEvaluator.configureHierarchy(TaskPathProjectEvaluator.java:60)
    at org.gradle.configuration.DefaultBuildConfigurer.configure(DefaultBuildConfigurer.java:38)
    at org.gradle.initialization.DefaultGradleLauncher$ConfigureBuild.run(DefaultGradleLauncher.java:249)
    at org.gradle.internal.progress.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:336)
    at org.gradle.internal.progress.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:328)
    at org.gradle.internal.progress.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:199)
    at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:110)
    at org.gradle.initialization.DefaultGradleLauncher.configureBuild(DefaultGradleLauncher.java:167)
    at org.gradle.initialization.DefaultGradleLauncher.doBuildStages(DefaultGradleLauncher.java:126)
    at org.gradle.initialization.DefaultGradleLauncher.getConfiguredBuild(DefaultGradleLauncher.java:104)
    at org.gradle.internal.invocation.GradleBuildController$2.call(GradleBuildController.java:87)
    at org.gradle.internal.invocation.GradleBuildController$2.call(GradleBuildController.java:84)
    at org.gradle.internal.work.DefaultWorkerLeaseService.withLocks(DefaultWorkerLeaseService.java:152)
    at org.gradle.internal.invocation.GradleBuildController.doBuild(GradleBuildController.java:100)
    at org.gradle.internal.invocation.GradleBuildController.configure(GradleBuildController.java:84)
    at org.gradle.tooling.internal.provider.runner.ClientProvidedBuildActionRunner.run(ClientProvidedBuildActionRunner.java:64)
    at org.gradle.launcher.exec.ChainingBuildActionRunner.run(ChainingBuildActionRunner.java:35)
    at org.gradle.launcher.exec.ChainingBuildActionRunner.run(ChainingBuildActionRunner.java:35)
    at org.gradle.tooling.internal.provider.ValidatingBuildActionRunner.run(ValidatingBuildActionRunner.java:32)
    at org.gradle.launcher.exec.RunAsBuildOperationBuildActionRunner$1.run(RunAsBuildOperationBuildActionRunner.java:43)
    at org.gradle.internal.progress.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:336)
    at org.gradle.internal.progress.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:328)
    at org.gradle.internal.progress.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:199)
    at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:110)
    at org.gradle.launcher.exec.RunAsBuildOperationBuildActionRunner.run(RunAsBuildOperationBuildActionRunner.java:40)
    at org.gradle.tooling.internal.provider.SubscribableBuildActionRunner.run(SubscribableBuildActionRunner.java:51)
    at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:47)
    at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:30)
    at org.gradle.launcher.exec.BuildTreeScopeBuildActionExecuter.execute(BuildTreeScopeBuildActionExecuter.java:39)
    at org.gradle.launcher.exec.BuildTreeScopeBuildActionExecuter.execute(BuildTreeScopeBuildActionExecuter.java:25)
    at org.gradle.tooling.internal.provider.ContinuousBuildActionExecuter.execute(ContinuousBuildActionExecuter.java:80)
    at org.gradle.tooling.internal.provider.ContinuousBuildActionExecuter.execute(ContinuousBuildActionExecuter.java:53)
    at org.gradle.tooling.internal.provider.ServicesSetupBuildActionExecuter.execute(ServicesSetupBuildActionExecuter.java:57)
    at org.gradle.tooling.internal.provider.ServicesSetupBuildActionExecuter.execute(ServicesSetupBuildActionExecuter.java:32)
    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.ParallelismConfigurationBuildActionExecuter.execute(ParallelismConfigurationBuildActionExecuter.java:43)
    at org.gradle.tooling.internal.provider.ParallelismConfigurationBuildActionExecuter.execute(ParallelismConfigurationBuildActionExecuter.java:29)
    at org.gradle.tooling.internal.provider.StartParamsValidatingActionExecuter.execute(StartParamsValidatingActionExecuter.java:69)
    at org.gradle.tooling.internal.provider.StartParamsValidatingActionExecuter.execute(StartParamsValidatingActionExecuter.java:30)
    at org.gradle.tooling.internal.provider.SessionFailureReportingActionExecuter.execute(SessionFailureReportingActionExecuter.java:59)
    at org.gradle.tooling.internal.provider.SessionFailureReportingActionExecuter.execute(SessionFailureReportingActionExecuter.java:44)
    at org.gradle.tooling.internal.provider.SetupLoggingActionExecuter.execute(SetupLoggingActionExecuter.java:45)
    at org.gradle.tooling.internal.provider.SetupLoggingActionExecuter.execute(SetupLoggingActionExecuter.java:30)
    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:122)
    at org.gradle.launcher.daemon.server.exec.WatchForDisconnection.execute(WatchForDisconnection.java:37)
    at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:122)
    at org.gradle.launcher.daemon.server.exec.ResetDeprecationLogger.execute(ResetDeprecationLogger.java:26)
    at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:122)
    at org.gradle.launcher.daemon.server.exec.RequestStopIfSingleUsedDaemon.execute(RequestStopIfSingleUsedDaemon.java:34)
    at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:122)
    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:122)
    at org.gradle.launcher.daemon.server.exec.LogAndCheckHealth.execute(LogAndCheckHealth.java:55)
    at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:122)
    at org.gradle.launcher.daemon.server.exec.LogToClient.doBuild(LogToClient.java:62)
    at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36)
    at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:122)
    at org.gradle.launcher.daemon.server.exec.EstablishBuildEnvironment.doBuild(EstablishBuildEnvironment.java:82)
    at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36)
    at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:122)
    at org.gradle.launcher.daemon.server.exec.StartBuildOrRespondWithBusy$1.run(StartBuildOrRespondWithBusy.java:50)
    at org.gradle.launcher.daemon.server.DaemonStateCoordinator$1.run(DaemonStateCoordinator.java:295)
    at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:63)
    at org.gradle.internal.concurrent.ManagedExecutorImpl$1.run(ManagedExecutorImpl.java:46)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:55)
    at java.lang.Thread.run(Thread.java:745)
Caused by: org.apache.http.conn.HttpHostConnectException: Connect to 10.2.1.9:8080 [/10.2.1.9] failed: Connection timed out: connect
    at org.apache.http.impl.conn.DefaultHttpClientConnectionOperator.connect(DefaultHttpClientConnectionOperator.java:151)
    at org.apache.http.impl.conn.PoolingHttpClientConnectionManager.connect(PoolingHttpClientConnectionManager.java:353)
    at org.apache.http.impl.execchain.MainClientExec.establishRoute(MainClientExec.java:388)
    at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:236)
    at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:184)
    at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:88)
    at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:110)
    at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:184)
    at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:82)
    at org.gradle.internal.resource.transport.http.HttpClientHelper.performHttpRequest(HttpClientHelper.java:148)
    at org.gradle.internal.resource.transport.http.HttpClientHelper.performHttpRequest(HttpClientHelper.java:126)
    at org.gradle.internal.resource.transport.http.HttpClientHelper.executeGetOrHead(HttpClientHelper.java:103)
    at org.gradle.internal.resource.transport.http.HttpClientHelper.performRequest(HttpClientHelper.java:94)
    ... 166 more
Caused by: java.net.ConnectException: Connection timed out: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:85)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    at java.net.Socket.connect(Socket.java:589)
    at org.apache.http.conn.socket.PlainConnectionSocketFactory.connectSocket(PlainConnectionSocketFactory.java:74)
    at org.apache.http.impl.conn.DefaultHttpClientConnectionOperator.connect(DefaultHttpClientConnectionOperator.java:134)
    ... 178 more

【问题讨论】：

  • 您能检查一下您是否能够连接互联网吗？您的代理配置正确吗？
  • 是的，互联网工作正常（我使用没有代理的互联网）。当我在浏览器中打开第一个链接时，文件很容易在浏览器中下载。此外，Android Studio 没有配置代理。
  • 看这里：stackoverflow.com/a/47273520/2003986
  • 文件 -> 使缓存无效/重新启动 -> 无效并重新启动。试试也许这有帮助？
  • @ToYonos 我已经尝试了链接中的解决方案，但它不起作用。

标签： android android-studio gradle


【解决方案1】：

我找到了解决方案。

  • 问题是我为我的大学代理服务器设置了代理详细信息 Android Studio 中的互联网访问。当这个问题出现时，我尝试了 在使用代理的 Internet 连接上使用代理构建项目，但它 没用。
  • 然后我从 Android Studio 首选项中删除了代理并 连接到非代理互联网连接，但问题没有 消失。
  • 然后我用谷歌搜索了很多，然后来到这里，但找不到根本原因。
  • 我将 AS 从 3.1.3 更新到 3.2，但问题仍然存在。
  • 最后，我开始在 AS 中寻找隐藏的代理服务器详细信息，并 在位于 Gradle -> 的 gradle.properties 文件中找到它们 资源包 'gradle' -> gradle.properties。
  • 删除了此文件中的代理服务器详细信息并运行构建 对 Android Studio 建议执行一些包更新后成功完成。

宾果游戏！ ?

【讨论】：

  • 这让我找到了解决方案。我必须进入 /home/myuser/.gradle/gradle.properties 中用户的 gradle 设置才能找到保存的代理设置 - Linux。 Android Studio 中没有任何地方向我显示这些保存的设置！非常感谢你的提示！！！哦，还有，Android Studio 3.5.3
  • 很高兴它帮助了@RJCole?
  • 我真的浪费了一整天的时间才弄明白。非常感谢。
  • 真的是你救了我一整天的问题我终于找到了解决方案。
【解决方案2】：

对我来说，我所要做的就是在 Windows 资源管理器中转到 C:\Users.gradle\gradle.properties 并将文件内容替换为：

## For more details on how to configure your build environment visit
# http://www.gradle.org/docs/current/userguide/build_environment.html
#
# Specifies the JVM arguments used for the daemon process.
# The setting is particularly useful for tweaking memory settings.
# Default value: -Xmx1024m -XX:MaxPermSize=256m
# org.gradle.jvmargs=-Xmx2048m -XX:MaxPermSize=512m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8
#
# When configured, Gradle will run in incubating parallel mode.
# This option should only be used with decoupled projects. More details, visit
# http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
# org.gradle.parallel=true
systemProp.http.nonProxyHosts=
systemProp.http.proxyHost=
systemProp.http.proxyPassword=
systemProp.http.proxyPort=80
systemProp.http.proxyUser=
systemProp.https.nonProxyHosts=
systemProp.https.proxyHost=
systemProp.https.proxyPassword=
systemProp.https.proxyPort=80
systemProp.https.proxyUser=

然后同步我的 gradle 并接受设置，一切都开始正常工作了。

【讨论】：

    【解决方案3】：

    除了@mhaseebn 回答之外，我还删除了 Windows 机器的 C:\Users.gradle\gradle.properties 中为我工作的代理条目

    【讨论】：

      【解决方案4】：

      进入file>settings并找到http proxy点击ma​​nual proxy configuration并选择http

      • 主机名：fodev.org
      • 端口：8118

      【讨论】：

        【解决方案5】：

        我在 mac 上遇到了同样的问题，从用户目录中的 .gradle 文件中删除 http 代理设置

        【讨论】：

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