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when I compile it,there are some errors,why?and how to solve it? #22

@ksspwuwei

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@ksspwuwei
[root@wuwei org.csstudio.product]# mvn -B -P my-css-settings clean verify
[INFO] Scanning for projects...
[INFO] Computing target platform for MavenProject: org.csstudio:org.csstudio.product:4.4.1-SNAPSHOT @ /root/cs-studio/org.csstudio.product/plugins/org.csstudio.product/pom.xml
[INFO] Fetching p2.index from http://download.controlsystemstudio.org/updates/4.4/ (0B of 130B at 0B/s)
[INFO] Adding repository http://download.controlsystemstudio.org/updates/4.4
[INFO] Fetching p2.index from http://download.controlsystemstudio.org/core/4.4/ (0B of 130B at 0B/s)
[INFO] Fetching p2.index from http://download.controlsystemstudio.org/applications/4.4/ (0B of 130B at 0B/s)
[INFO] Adding repository http://download.controlsystemstudio.org/issue/1818
[INFO] Adding repository file:/root/cs-studio/my_comp_repo
[INFO] Fetching p2.index from http://download.eclipse.org/releases/mars/ (0B at 0B/s)
[INFO] Adding repository http://download.eclipse.org/releases/mars
[INFO] Fetching p2.index from http://download.eclipse.org/technology/epp/packages/mars/ (0B at 0B/s)
[INFO] Fetching p2.index from http://download.eclipse.org/releases/mars/201506241002/ (0B at 0B/s)
[INFO] Fetching p2.index from http://download.eclipse.org/releases/mars/201510021000/ (0B at 0B/s)
[INFO] Fetching p2.index from http://download.eclipse.org/releases/mars/201602261000/ (0B at 0B/s)
[INFO] Fetching p2.index from http://download.eclipse.org/eclipse/updates/4.5/ (0B at 0B/s)
[INFO] Adding repository http://download.eclipse.org/eclipse/updates/4.5
[INFO] Fetching p2.index from http://download.eclipse.org/eclipse/updates/4.5/R-4.5-201506032000/ (0B at 0B/s)
[INFO] Fetching p2.index from http://download.eclipse.org/eclipse/updates/4.5/R-4.5.1-201509040015/ (0B at 0B/s)
[INFO] Fetching p2.index from http://download.eclipse.org/eclipse/updates/4.5/R-4.5.2-201602121500/ (0B at 0B/s)
[ERROR] Internal error: java.lang.RuntimeException: Failed to load p2 repository with ID 'eclipse-updates' from location http://download.eclipse.org/eclipse/updates/4.5: Unable to read repository at http://download.eclipse.org/eclipse/updates/4.5. Communication with repository at http://download.eclipse.org/eclipse/updates/4.5/R-4.5.2-201602121500/content.xml.xz failed. Read timed out -> [Help 1]
org.apache.maven.InternalErrorException: Internal error: java.lang.RuntimeException: Failed to load p2 repository with ID 'eclipse-updates' from location http://download.eclipse.org/eclipse/updates/4.5
	at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:121)
	at org.apache.maven.cli.MavenCli.execute(MavenCli.java:863)
	at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:288)
	at org.apache.maven.cli.MavenCli.main(MavenCli.java:199)
	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: java.lang.RuntimeException: Failed to load p2 repository with ID 'eclipse-updates' from location http://download.eclipse.org/eclipse/updates/4.5
	at org.eclipse.tycho.p2.target.TargetPlatformFactoryImpl.loadMetadataRepository(TargetPlatformFactoryImpl.java:302)
	at org.eclipse.tycho.p2.target.TargetPlatformFactoryImpl.gatherExternalInstallableUnits(TargetPlatformFactoryImpl.java:270)
	at org.eclipse.tycho.p2.target.TargetPlatformFactoryImpl.createTargetPlatform(TargetPlatformFactoryImpl.java:176)
	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)
	at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:266)
	at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:193)
	at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:106)
	... 11 more
Caused by: org.eclipse.equinox.p2.core.ProvisionException: Unable to read repository at http://download.eclipse.org/eclipse/updates/4.5.
	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.TargetPlatformFactoryImpl.loadMetadataRepository(TargetPlatformFactoryImpl.java:298)
	... 22 more
Caused by: org.eclipse.equinox.p2.core.ProvisionException: Communication with repository at http://download.eclipse.org/eclipse/updates/4.5/R-4.5.2-201602121500/content.xml.xz failed.
	at org.eclipse.equinox.internal.p2.repository.CacheManager.createCacheFromFile(CacheManager.java:117)
	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)
	... 31 more
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:170)
	at java.net.SocketInputStream.read(SocketInputStream.java:141)
	at org.apache.http.impl.io.AbstractSessionInputBuffer.fillBuffer(AbstractSessionInputBuffer.java:160)
	at org.apache.http.impl.io.SocketInputBuffer.fillBuffer(SocketInputBuffer.java:84)
	at org.apache.http.impl.io.AbstractSessionInputBuffer.readLine(AbstractSessionInputBuffer.java:273)
	at org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:140)
	at org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:57)
	at org.apache.http.impl.io.AbstractMessageParser.parse(AbstractMessageParser.java:260)
	at org.apache.http.impl.AbstractHttpClientConnection.receiveResponseHeader(AbstractHttpClientConnection.java:283)
	at org.apache.http.impl.conn.DefaultClientConnection.receiveResponseHeader(DefaultClientConnection.java:251)
	at org.apache.http.impl.conn.ManagedClientConnectionImpl.receiveResponseHeader(ManagedClientConnectionImpl.java:197)
	at org.apache.http.protocol.HttpRequestExecutor.doReceiveResponse(HttpRequestExecutor.java:271)
	at org.apache.http.protocol.HttpRequestExecutor.execute(HttpRequestExecutor.java:123)
	at org.apache.http.impl.client.DefaultRequestDirector.tryExecute(DefaultRequestDirector.java:685)
	at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:487)
	at org.apache.http.impl.client.AbstractHttpClient.doExecute(AbstractHttpClient.java:863)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:82)
	at org.eclipse.ecf.provider.filetransfer.httpclient4.HttpClientFileSystemBrowser.runRequest(HttpClientFileSystemBrowser.java:259)
	at org.eclipse.ecf.provider.filetransfer.browse.AbstractFileSystemBrowser$DirectoryJob.run(AbstractFileSystemBrowser.java:69)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
[ERROR] 
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/InternalErrorException

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