我已经配置了代理，并且在IDE中也配置了代理，并且测试了jar的链接。他也工作 有了，但是不知道为什么没有下载。
org.gradle.internal.resource.transport.http.HttpRequestException: Could not HEAD 'https://maven.google.com/com/android/tools/build/gradle/3.1.2/gradle-3.1.2-sources.jar'.
at org.gradle.internal.resource.transport.http.HttpClientHelper.performRequest(HttpClientHelper.java:96)
at org.gradle.internal.resource.transport.http.HttpClientHelper.performRawHead(HttpClientHelper.java:72)
at org.gradle.internal.resource.transport.http.HttpClientHelper.performHead(HttpClientHelper.java:76)
at org.gradle.internal.resource.transport.http.HttpResourceAccessor.getMetaData(HttpResourceAccessor.java:65)
at org.gradle.internal.resource.transfer.DefaultExternalResourceConnector.getMetaData(DefaultExternalResourceConnector.java:63)
at org.gradle.internal.resource.transfer.AccessorBackedExternalResource.getMetaData(AccessorBackedExternalResource.java:201)
at org.gradle.internal.resource.BuildOperationFiringExternalResourceDecorator$1.call(BuildOperationFiringExternalResourceDecorator.java:61)
at org.gradle.internal.resource.BuildOperationFiringExternalResourceDecorator$1.call(BuildOperationFiringExternalResourceDecorator.java:58)
at org.gradle.internal.progress.DefaultBuildOperationExecutor$CallableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:350)
at org.gradle.internal.progress.DefaultBuildOperationExecutor$CallableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:340)
at org.gradle.internal.progress.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:199)
at org.gradle.internal.progress.DefaultBuildOperationExecutor.call(DefaultBuildOperationExecutor.java:120)
at org.gradle.internal.resource.BuildOperationFiringExternalResourceDecorator.getMetaData(BuildOperationFiringExternalResourceDecorator.java:58)
at org.gradle.api.internal.artifacts.repositories.resolver.DefaultExternalResourceArtifactResolver.staticResourceExists(DefaultExternalResourceArtifactResolver.java:80)
at org.gradle.api.internal.artifacts.repositories.resolver.DefaultExternalResourceArtifactResolver.artifactExists(DefaultExternalResourceArtifactResolver.java:71)
at org.gradle.api.internal.artifacts.repositories.resolver.ExternalResourceResolver.findOptionalArtifacts(ExternalResourceResolver.java:279)
at org.gradle.api.internal.artifacts.repositories.resolver.MavenResolver$MavenRemoteRepositoryAccess.resolveSourceArtifacts(MavenResolver.java:333)
at org.gradle.api.internal.artifacts.repositories.resolver.MavenResolver$MavenRemoteRepositoryAccess.resolveSourceArtifacts(MavenResolver.java:309)
at org.gradle.api.internal.artifacts.repositories.resolver.ExternalResourceResolver$AbstractRepositoryAccess.resolveArtifactsWithType(ExternalResourceResolver.java:402)
at org.gradle.api.internal.artifacts.repositories.resolver.ExternalResourceResolver$RemoteRepositoryAccess.resolveArtifactsWithType(ExternalResourceResolver.java:472)
at org.gradle.api.internal.artifacts.ivyservice.ivyresolve.CachingModuleComponentRepository$ResolveAndCacheRepositoryAccess.resolveArtifactsWithType(CachingModuleComponentRepository.java:387)
at org.gradle.api.internal.artifacts.ivyservice.ivyresolve.BaseModuleComponentRepositoryAccess.resolveArtifactsWithType(BaseModuleComponentRepositoryAccess.java:55)
at org.gradle.api.internal.artifacts.ivyservice.ivyresolve.memcache.InMemoryCachedModuleComponentRepository$CachedAccess.resolveArtifactsWithType(InMemoryCachedModuleComponentRepository.java:116)
at org.gradle.api.internal.artifacts.ivyservice.ivyresolve.ErrorHandlingModuleComponentRepository$ErrorHandlingModuleComponentRepositoryAccess.resolveArtifactsWithType(ErrorHandlingModuleComponentRepository.java:141)
at org.gradle.api.internal.artifacts.ivyservice.ivyresolve.RepositoryChainArtifactResolver.resolveArtifactsWithType(RepositoryChainArtifactResolver.java:51)
at org.gradle.api.internal.artifacts.ivyservice.ivyresolve.ErrorHandlingArtifactResolver.resolveArtifactsWithType(ErrorHandlingArtifactResolver.java:37)
at org.gradle.api.internal.artifacts.query.DefaultArtifactResolutionQuery.addArtifacts(DefaultArtifactResolutionQuery.java:158)
at org.gradle.api.internal.artifacts.query.DefaultArtifactResolutionQuery.buildComponentResult(DefaultArtifactResolutionQuery.java:151)
at org.gradle.api.internal.artifacts.query.DefaultArtifactResolutionQuery.access$100(DefaultArtifactResolutionQuery.java:64)
at org.gradle.api.internal.artifacts.query.DefaultArtifactResolutionQuery$1.create(DefaultArtifactResolutionQuery.java:123)
at org.gradle.api.internal.artifacts.query.DefaultArtifactResolutionQuery$1.create(DefaultArtifactResolutionQuery.java:116)
at org.gradle.cache.internal.DefaultCacheAccess.useCache(DefaultCacheAccess.java:222)
at org.gradle.cache.internal.DefaultPersistentDirectoryStore.useCache(DefaultPersistentDirectoryStore.java:152)
at org.gradle.cache.internal.DefaultCacheFactory$ReferenceTrackingCache.useCache(DefaultCacheFactory.java:190)
at org.gradle.api.internal.artifacts.ivyservice.DefaultCacheLockingManager.useCache(DefaultCacheLockingManager.java:62)
at org.gradle.api.internal.artifacts.query.DefaultArtifactResolutionQuery.execute(DefaultArtifactResolutionQuery.java:116)
at org.jetbrains.plugins.gradle.tooling.util.DependencyResolverImpl.resolveDependencies(DependencyResolverImpl.java:207)
at org.jetbrains.plugins.gradle.tooling.util.DependencyResolverImpl.resolveDependencies(DependencyResolverImpl.java:125)
at org.jetbrains.plugins.gradle.tooling.builder.ModelBuildScriptClasspathBuilderImpl.buildAll(ModelBuildScriptClasspathBuilderImpl.java:89)
at org.jetbrains.plugins.gradle.tooling.internal.ExtraModelBuilder.buildAll(ExtraModelBuilder.java:67)
at org.gradle.tooling.internal.provider.runner.DefaultBuildController.getModel(DefaultBuildController.java:79)
at org.gradle.tooling.internal.provider.runner.DefaultBuildController.getModel(DefaultBuildController.java:61)
at org.gradle.tooling.internal.consumer.connection.BuildControllerAdapter.getModel(BuildControllerAdapter.java:58)
at org.gradle.tooling.internal.consumer.connection.AbstractBuildController.findModel(AbstractBuildController.java:39)
at org.jetbrains.plugins.gradle.model.ProjectImportAction.addExtraProject(ProjectImportAction.java:123)
at org.jetbrains.plugins.gradle.model.ProjectImportAction.execute(ProjectImportAction.java:76)
at org.jetbrains.plugins.gradle.model.ProjectImportAction.execute(ProjectImportAction.java:40)
at org.gradle.tooling.internal.consumer.connection.InternalBuildActionAdapter.execute(InternalBuildActionAdapter.java:53)
at org.gradle.tooling.internal.provider.runner.ClientProvidedBuildActionRunner.buildResult(ClientProvidedBuildActionRunner.java:79)
at org.gradle.tooling.internal.provider.runner.ClientProvidedBuildActionRunner.access$000(ClientProvidedBuildActionRunner.java:37)
at org.gradle.tooling.internal.provider.runner.ClientProvidedBuildActionRunner$1.buildFinished(ClientProvidedBuildActionRunner.java:56)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
at org.gradle.internal.event.DefaultListenerManager$ListenerDetails.dispatch(DefaultListenerManager.java:371)
at org.gradle.internal.event.DefaultListenerManager$ListenerDetails.dispatch(DefaultListenerManager.java:353)
at org.gradle.internal.event.AbstractBroadcastDispatch.dispatch(AbstractBroadcastDispatch.java:58)
at org.gradle.internal.event.DefaultListenerManagerEventBroadcastListenerDispatch.dispatch(DefaultListenerManager.java:341)
at org.gradle.internal.event.DefaultListenerManagerEventBroadcastListenerDispatch.dispatch(DefaultListenerManager.java:328)
at org.gradle.internal.event.AbstractBroadcastDispatch.dispatch(AbstractBroadcastDispatch.java:42)
at org.gradle.internal.event.BroadcastDispatch$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.$Proxy16.buildFinished(Unknown Source)
at org.gradle.initialization.DefaultGradleLauncher.finishBuild(DefaultGradleLauncher.java:148)
at org.gradle.initialization.DefaultGradleLauncher.finishBuild(DefaultGradleLauncher.java:116)
at org.gradle.internal.invocation.GradleBuildController$2.call(GradleBuildController.java:88)
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$ManagedThreadRunnable.run(ThreadFactoryImpl.java:55)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.net.SocketTimeoutException: Read timed out
at java.net.SocketInputStream.socketRead0(Native Method)
at java.net.SocketInputStream.socketRead(SocketInputStream.java:116)
at java.net.SocketInputStream.read(SocketInputStream.java:171)
at java.net.SocketInputStream.read(SocketInputStream.java:141)
配置
implementation fileTree(dir: "libs", include: ["*.jar"])
implementation com.android.support:appcompat-
v7:${rootProject.ext.supportLibVersion}"
api "com.facebook.react:react-native:+" // From node_modules
尝试更换
api "com.facebook.react:react-native:+"
与
implementation "com.facebook.react:react-native:+"
您还可以发布您的 android/build.gradle 和 gradle/wrapper/gradle-wrapper.properties 吗？
当您的代理配置无效时，会发生读取超时。要测试代理，您可以使用以下方式：
按 ctrl+alt+s：
搜索 HTTP 代理。
确保您有有效的配置（HTTP 或 SOCKS），然后按“检查连接”并使用 google.com 进行测试。
如果结果成功，请检查项目中的
gradle.propertiessystemProp.http.proxyHost=127.0.0.1 (your proxy ip)
systemProp.http.proxyPort=1080 (your proxy port)
添加Google服务时遇到这个问题 Android Studio 无法下载类路径
com.google.gms:google-services:4.3.4通过将
google()buildscript {
repositories {
google() // must be first
jcenter()
}
}
和
allprojects {
repositories {
google() //must be first
jcenter()
}
}
与我的大学 LAN 连接时遇到此问题（当我下载模拟器时），我使用 VPN 连接修复了该问题，然后下载继续。