由于 p2 存储库，Tycho 构建失败
Tycho build is failing because of p2 repositories
我使用 Tycho 已经几个月了。但是昨天我在使用 Tycho 构建应用程序时遇到了问题。乍一看，这是一个已关闭的存储库。但今天我遇到了同样的问题，不仅在一般的 Eclipse 4.7 回购中，而且在其他回购中。
我在我的目标文件中使用这些存储库：
<repository location="http://download.eclipse.org/eclipse/updates/4.7/" />
<repository location="http://download.eclipse.org/technology/epp/packages/oxygen" />
<repository location="http://download.eclipse.org/nattable/releases/1.5.0/repository/"/>
<repository location="http://download.eclipse.org/releases/oxygen/"/>
<repository location="http://download.eclipse.org/nebula/snapshot/"/>
<repository location="http://download.eclipse.org/nebula/incubation/snapshot/"/>
<repository location="http://download.eclipse.org/nattable/snapshots/latest/repository/"/>
我在我的开发和构建服务器上构建它时遇到的错误是：
[ERROR] Failed to resolve target definition D:\Jenkins\workspace\Client Staging\neon\neon.target: Failed to load p2 metadata repository from location http://download.eclipse.org/eclipse/updates/4.7/: Unable to read repository at http://download.eclipse.org/eclipse/updates/4.7. HTTP Server 'Bad Gateway' : http://download.eclipse.org/eclipse/updates/4.7/R-4.7.3a-201803300640/content.xml.xz: HttpComponents connection error response code 502. -> [Help 1]
有人知道如何解决这个问题吗？我需要它以自动方式构建我的应用程序并将应用程序部署到不同的位置。
完整的 Maven 错误如下所示：
org.apache.maven.MavenExecutionException: Failed to resolve target definition C:\Users\test\Downloads\test\neon\neon.target: Failed to load p2 metadata repository from location http://download.eclipse.org/eclipse/updates/4.7/
at org.eclipse.tycho.core.maven.TychoMavenLifecycleParticipant.afterProjectsRead(TychoMavenLifecycleParticipant.java:100)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:267)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:194)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:107)
at org.apache.maven.cli.MavenCli.execute(MavenCli.java:993)
at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:345)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:191)
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.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
Caused by: org.eclipse.tycho.core.shared.BuildFailureException: Failed to resolve target definition C:\Users\test\Downloads\test\neon\neon.target: Failed to load p2 metadata repository from location http://download.eclipse.org/eclipse/updates/4.7/
at org.eclipse.tycho.p2.target.TargetDefinitionResolver.resolveContent(TargetDefinitionResolver.java:99)
at org.eclipse.tycho.p2.target.TargetDefinitionResolverService.resolveFromArguments(TargetDefinitionResolverService.java:70)
at org.eclipse.tycho.p2.target.TargetDefinitionResolverService.getTargetDefinitionContent(TargetDefinitionResolverService.java:60)
at org.eclipse.tycho.p2.target.TargetPlatformFactoryImpl.resolveTargetDefinitions(TargetPlatformFactoryImpl.java:214)
at org.eclipse.tycho.p2.target.TargetPlatformFactoryImpl.createTargetPlatform(TargetPlatformFactoryImpl.java:155)
at org.eclipse.tycho.p2.target.TargetPlatformFactoryImpl.createTargetPlatform(TargetPlatformFactoryImpl.java:128)
at org.eclipse.tycho.p2.target.TargetPlatformFactoryImpl.createTargetPlatform(TargetPlatformFactoryImpl.java:1)
at org.eclipse.tycho.p2.manager.ReactorRepositoryManagerImpl.computePreliminaryTargetPlatform(ReactorRepositoryManagerImpl.java:84)
at org.eclipse.tycho.p2.resolver.P2DependencyResolver.computePreliminaryTargetPlatform(P2DependencyResolver.java:223)
at org.eclipse.tycho.core.resolver.DefaultTychoResolver.resolveProject(DefaultTychoResolver.java:109)
at org.eclipse.tycho.core.maven.TychoMavenLifecycleParticipant.afterProjectsRead(TychoMavenLifecycleParticipant.java:95)
... 14 more
Caused by: org.eclipse.tycho.p2.target.facade.TargetDefinitionResolutionException: Failed to load p2 metadata repository from location http://download.eclipse.org/eclipse/updates/4.7/
at org.eclipse.tycho.p2.target.TargetDefinitionResolver$LoadedIULocation.loadRepository(TargetDefinitionResolver.java:290)
at org.eclipse.tycho.p2.target.TargetDefinitionResolver$LoadedIULocation.<init>(TargetDefinitionResolver.java:282)
at org.eclipse.tycho.p2.target.TargetDefinitionResolver$ResolverRun.addLocation(TargetDefinitionResolver.java:154)
at org.eclipse.tycho.p2.target.TargetDefinitionResolver.resolveContentWithExceptions(TargetDefinitionResolver.java:121)
at org.eclipse.tycho.p2.target.TargetDefinitionResolver.resolveContent(TargetDefinitionResolver.java:94)
... 24 more
Caused by: org.eclipse.equinox.p2.core.ProvisionException: Unable to read repository at http://download.eclipse.org/eclipse/updates/4.7.
at org.eclipse.equinox.internal.p2.metadata.repository.CompositeMetadataRepository.addChild(CompositeMetadataRepository.java:185)
at org.eclipse.equinox.internal.p2.metadata.repository.CompositeMetadataRepository.<init>(CompositeMetadataRepository.java:106)
at org.eclipse.equinox.internal.p2.metadata.repository.CompositeMetadataRepositoryFactory.load(CompositeMetadataRepositoryFactory.java:122)
at org.eclipse.equinox.internal.p2.metadata.repository.MetadataRepositoryManager.factoryLoad(MetadataRepositoryManager.java:57)
at org.eclipse.equinox.internal.p2.repository.helpers.AbstractRepositoryManager.loadRepository(AbstractRepositoryManager.java:768)
at org.eclipse.equinox.internal.p2.repository.helpers.AbstractRepositoryManager.loadRepository(AbstractRepositoryManager.java:668)
at org.eclipse.equinox.internal.p2.metadata.repository.MetadataRepositoryManager.loadRepository(MetadataRepositoryManager.java:96)
at org.eclipse.tycho.p2.remote.RemoteMetadataRepositoryManager.loadRepository(RemoteMetadataRepositoryManager.java:61)
at org.eclipse.tycho.p2.remote.RemoteMetadataRepositoryManager.loadRepository(RemoteMetadataRepositoryManager.java:53)
at org.eclipse.tycho.p2.target.TargetDefinitionResolver$LoadedIULocation.loadRepository(TargetDefinitionResolver.java:288)
... 28 more
Caused by: org.eclipse.equinox.p2.core.ProvisionException: HTTP Server 'Bad Gateway' : http://download.eclipse.org/eclipse/updates/4.7/R-4.7-201706120950/content.xml.xz
at org.eclipse.equinox.internal.p2.repository.CacheManager.updateCache(CacheManager.java:428)
at org.eclipse.equinox.internal.p2.repository.CacheManager.createCacheFromFile(CacheManager.java:132)
at org.eclipse.tycho.p2.remote.RemoteRepositoryCacheManager.createCacheFromFile(RemoteRepositoryCacheManager.java:85)
at org.eclipse.equinox.internal.p2.metadata.repository.XZedSimpleMetadataRepositoryFactory.getLocalFile(XZedSimpleMetadataRepositoryFactory.java:56)
at org.eclipse.equinox.internal.p2.metadata.repository.XZedSimpleMetadataRepositoryFactory.load(XZedSimpleMetadataRepositoryFactory.java:78)
at org.eclipse.equinox.internal.p2.metadata.repository.MetadataRepositoryManager.factoryLoad(MetadataRepositoryManager.java:57)
at org.eclipse.equinox.internal.p2.repository.helpers.AbstractRepositoryManager.loadRepository(AbstractRepositoryManager.java:768)
at org.eclipse.equinox.internal.p2.repository.helpers.AbstractRepositoryManager.loadRepository(AbstractRepositoryManager.java:668)
at org.eclipse.equinox.internal.p2.metadata.repository.MetadataRepositoryManager.loadRepository(MetadataRepositoryManager.java:96)
at org.eclipse.tycho.p2.remote.RemoteMetadataRepositoryManager.loadRepository(RemoteMetadataRepositoryManager.java:61)
at org.eclipse.tycho.p2.remote.RemoteMetadataRepositoryManager.loadRepository(RemoteMetadataRepositoryManager.java:53)
at org.eclipse.equinox.internal.p2.metadata.repository.CompositeMetadataRepository.addChild(CompositeMetadataRepository.java:166)
... 37 more
Caused by: org.eclipse.ecf.filetransfer.IncomingFileTransferException: HttpComponents connection error response code 502.
at org.eclipse.ecf.provider.filetransfer.httpclient4.HttpClientRetrieveFileTransfer.openStreams(HttpClientRetrieveFileTransfer.java:667)
at org.eclipse.ecf.provider.filetransfer.retrieve.AbstractRetrieveFileTransfer.sendRetrieveRequest(AbstractRetrieveFileTransfer.java:885)
at org.eclipse.ecf.provider.filetransfer.retrieve.MultiProtocolRetrieveAdapter.sendRetrieveRequest(MultiProtocolRetrieveAdapter.java:146)
at org.eclipse.equinox.internal.p2.transport.ecf.FileReader.sendRetrieveRequest(FileReader.java:424)
at org.eclipse.equinox.internal.p2.transport.ecf.FileReader.readInto(FileReader.java:360)
at org.eclipse.equinox.internal.p2.transport.ecf.RepositoryTransport.download(RepositoryTransport.java:101)
at org.eclipse.equinox.internal.p2.transport.ecf.RepositoryTransport.download(RepositoryTransport.java:156)
at org.eclipse.equinox.internal.p2.repository.CacheManager.updateCache(CacheManager.java:402)
... 48 more
问题是不稳定的 p2 存储库。没有改变任何东西，今天它工作得很好。
我使用 Tycho 已经几个月了。但是昨天我在使用 Tycho 构建应用程序时遇到了问题。乍一看，这是一个已关闭的存储库。但今天我遇到了同样的问题，不仅在一般的 Eclipse 4.7 回购中，而且在其他回购中。
我在我的目标文件中使用这些存储库：
<repository location="http://download.eclipse.org/eclipse/updates/4.7/" />
<repository location="http://download.eclipse.org/technology/epp/packages/oxygen" />
<repository location="http://download.eclipse.org/nattable/releases/1.5.0/repository/"/>
<repository location="http://download.eclipse.org/releases/oxygen/"/>
<repository location="http://download.eclipse.org/nebula/snapshot/"/>
<repository location="http://download.eclipse.org/nebula/incubation/snapshot/"/>
<repository location="http://download.eclipse.org/nattable/snapshots/latest/repository/"/>
我在我的开发和构建服务器上构建它时遇到的错误是：
[ERROR] Failed to resolve target definition D:\Jenkins\workspace\Client Staging\neon\neon.target: Failed to load p2 metadata repository from location http://download.eclipse.org/eclipse/updates/4.7/: Unable to read repository at http://download.eclipse.org/eclipse/updates/4.7. HTTP Server 'Bad Gateway' : http://download.eclipse.org/eclipse/updates/4.7/R-4.7.3a-201803300640/content.xml.xz: HttpComponents connection error response code 502. -> [Help 1]
有人知道如何解决这个问题吗？我需要它以自动方式构建我的应用程序并将应用程序部署到不同的位置。
完整的 Maven 错误如下所示：
org.apache.maven.MavenExecutionException: Failed to resolve target definition C:\Users\test\Downloads\test\neon\neon.target: Failed to load p2 metadata repository from location http://download.eclipse.org/eclipse/updates/4.7/
at org.eclipse.tycho.core.maven.TychoMavenLifecycleParticipant.afterProjectsRead(TychoMavenLifecycleParticipant.java:100)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:267)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:194)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:107)
at org.apache.maven.cli.MavenCli.execute(MavenCli.java:993)
at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:345)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:191)
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.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
Caused by: org.eclipse.tycho.core.shared.BuildFailureException: Failed to resolve target definition C:\Users\test\Downloads\test\neon\neon.target: Failed to load p2 metadata repository from location http://download.eclipse.org/eclipse/updates/4.7/
at org.eclipse.tycho.p2.target.TargetDefinitionResolver.resolveContent(TargetDefinitionResolver.java:99)
at org.eclipse.tycho.p2.target.TargetDefinitionResolverService.resolveFromArguments(TargetDefinitionResolverService.java:70)
at org.eclipse.tycho.p2.target.TargetDefinitionResolverService.getTargetDefinitionContent(TargetDefinitionResolverService.java:60)
at org.eclipse.tycho.p2.target.TargetPlatformFactoryImpl.resolveTargetDefinitions(TargetPlatformFactoryImpl.java:214)
at org.eclipse.tycho.p2.target.TargetPlatformFactoryImpl.createTargetPlatform(TargetPlatformFactoryImpl.java:155)
at org.eclipse.tycho.p2.target.TargetPlatformFactoryImpl.createTargetPlatform(TargetPlatformFactoryImpl.java:128)
at org.eclipse.tycho.p2.target.TargetPlatformFactoryImpl.createTargetPlatform(TargetPlatformFactoryImpl.java:1)
at org.eclipse.tycho.p2.manager.ReactorRepositoryManagerImpl.computePreliminaryTargetPlatform(ReactorRepositoryManagerImpl.java:84)
at org.eclipse.tycho.p2.resolver.P2DependencyResolver.computePreliminaryTargetPlatform(P2DependencyResolver.java:223)
at org.eclipse.tycho.core.resolver.DefaultTychoResolver.resolveProject(DefaultTychoResolver.java:109)
at org.eclipse.tycho.core.maven.TychoMavenLifecycleParticipant.afterProjectsRead(TychoMavenLifecycleParticipant.java:95)
... 14 more
Caused by: org.eclipse.tycho.p2.target.facade.TargetDefinitionResolutionException: Failed to load p2 metadata repository from location http://download.eclipse.org/eclipse/updates/4.7/
at org.eclipse.tycho.p2.target.TargetDefinitionResolver$LoadedIULocation.loadRepository(TargetDefinitionResolver.java:290)
at org.eclipse.tycho.p2.target.TargetDefinitionResolver$LoadedIULocation.<init>(TargetDefinitionResolver.java:282)
at org.eclipse.tycho.p2.target.TargetDefinitionResolver$ResolverRun.addLocation(TargetDefinitionResolver.java:154)
at org.eclipse.tycho.p2.target.TargetDefinitionResolver.resolveContentWithExceptions(TargetDefinitionResolver.java:121)
at org.eclipse.tycho.p2.target.TargetDefinitionResolver.resolveContent(TargetDefinitionResolver.java:94)
... 24 more
Caused by: org.eclipse.equinox.p2.core.ProvisionException: Unable to read repository at http://download.eclipse.org/eclipse/updates/4.7.
at org.eclipse.equinox.internal.p2.metadata.repository.CompositeMetadataRepository.addChild(CompositeMetadataRepository.java:185)
at org.eclipse.equinox.internal.p2.metadata.repository.CompositeMetadataRepository.<init>(CompositeMetadataRepository.java:106)
at org.eclipse.equinox.internal.p2.metadata.repository.CompositeMetadataRepositoryFactory.load(CompositeMetadataRepositoryFactory.java:122)
at org.eclipse.equinox.internal.p2.metadata.repository.MetadataRepositoryManager.factoryLoad(MetadataRepositoryManager.java:57)
at org.eclipse.equinox.internal.p2.repository.helpers.AbstractRepositoryManager.loadRepository(AbstractRepositoryManager.java:768)
at org.eclipse.equinox.internal.p2.repository.helpers.AbstractRepositoryManager.loadRepository(AbstractRepositoryManager.java:668)
at org.eclipse.equinox.internal.p2.metadata.repository.MetadataRepositoryManager.loadRepository(MetadataRepositoryManager.java:96)
at org.eclipse.tycho.p2.remote.RemoteMetadataRepositoryManager.loadRepository(RemoteMetadataRepositoryManager.java:61)
at org.eclipse.tycho.p2.remote.RemoteMetadataRepositoryManager.loadRepository(RemoteMetadataRepositoryManager.java:53)
at org.eclipse.tycho.p2.target.TargetDefinitionResolver$LoadedIULocation.loadRepository(TargetDefinitionResolver.java:288)
... 28 more
Caused by: org.eclipse.equinox.p2.core.ProvisionException: HTTP Server 'Bad Gateway' : http://download.eclipse.org/eclipse/updates/4.7/R-4.7-201706120950/content.xml.xz
at org.eclipse.equinox.internal.p2.repository.CacheManager.updateCache(CacheManager.java:428)
at org.eclipse.equinox.internal.p2.repository.CacheManager.createCacheFromFile(CacheManager.java:132)
at org.eclipse.tycho.p2.remote.RemoteRepositoryCacheManager.createCacheFromFile(RemoteRepositoryCacheManager.java:85)
at org.eclipse.equinox.internal.p2.metadata.repository.XZedSimpleMetadataRepositoryFactory.getLocalFile(XZedSimpleMetadataRepositoryFactory.java:56)
at org.eclipse.equinox.internal.p2.metadata.repository.XZedSimpleMetadataRepositoryFactory.load(XZedSimpleMetadataRepositoryFactory.java:78)
at org.eclipse.equinox.internal.p2.metadata.repository.MetadataRepositoryManager.factoryLoad(MetadataRepositoryManager.java:57)
at org.eclipse.equinox.internal.p2.repository.helpers.AbstractRepositoryManager.loadRepository(AbstractRepositoryManager.java:768)
at org.eclipse.equinox.internal.p2.repository.helpers.AbstractRepositoryManager.loadRepository(AbstractRepositoryManager.java:668)
at org.eclipse.equinox.internal.p2.metadata.repository.MetadataRepositoryManager.loadRepository(MetadataRepositoryManager.java:96)
at org.eclipse.tycho.p2.remote.RemoteMetadataRepositoryManager.loadRepository(RemoteMetadataRepositoryManager.java:61)
at org.eclipse.tycho.p2.remote.RemoteMetadataRepositoryManager.loadRepository(RemoteMetadataRepositoryManager.java:53)
at org.eclipse.equinox.internal.p2.metadata.repository.CompositeMetadataRepository.addChild(CompositeMetadataRepository.java:166)
... 37 more
Caused by: org.eclipse.ecf.filetransfer.IncomingFileTransferException: HttpComponents connection error response code 502.
at org.eclipse.ecf.provider.filetransfer.httpclient4.HttpClientRetrieveFileTransfer.openStreams(HttpClientRetrieveFileTransfer.java:667)
at org.eclipse.ecf.provider.filetransfer.retrieve.AbstractRetrieveFileTransfer.sendRetrieveRequest(AbstractRetrieveFileTransfer.java:885)
at org.eclipse.ecf.provider.filetransfer.retrieve.MultiProtocolRetrieveAdapter.sendRetrieveRequest(MultiProtocolRetrieveAdapter.java:146)
at org.eclipse.equinox.internal.p2.transport.ecf.FileReader.sendRetrieveRequest(FileReader.java:424)
at org.eclipse.equinox.internal.p2.transport.ecf.FileReader.readInto(FileReader.java:360)
at org.eclipse.equinox.internal.p2.transport.ecf.RepositoryTransport.download(RepositoryTransport.java:101)
at org.eclipse.equinox.internal.p2.transport.ecf.RepositoryTransport.download(RepositoryTransport.java:156)
at org.eclipse.equinox.internal.p2.repository.CacheManager.updateCache(CacheManager.java:402)
... 48 more
问题是不稳定的 p2 存储库。没有改变任何东西，今天它工作得很好。