我在Linux上运行Eclipse的Helios EE包，我添加了颠覆性的插件，m2e Maven集成和Trac的Mylin连接器。在过去的几个星期里，我一直在尝试安装更新，每次我都收到这样的消息

No repository found containing <something or other>

最新的一个是

An error occurred while collecting items to be installed
session context was:(profile=epp.package.jee, phase=org.eclipse.equinox.internal.p2.engine.phases.Collect, operand=, action=).
No repository found containing: osgi.bundle,org.eclipse.team.svn,0.7.9.I20110318-1700
No repository found containing: osgi.bundle,org.eclipse.team.svn.core,0.7.9.I20110523-1700
No repository found containing: osgi.bundle,org.eclipse.team.svn.help,0.7.9.I20110318-1700
No repository found containing: osgi.bundle,org.eclipse.team.svn.mylyn,0.7.9.I20110318-1700
No repository found containing: osgi.bundle,org.eclipse.team.svn.ui,0.7.9.I20110523-1700
No repository found containing: org.eclipse.update.feature,org.eclipse.team.svn,0.7.9.I20110523-1700
No repository found containing: org.eclipse.update.feature,org.eclipse.team.svn.mylyn,0.7.9.I20110523-1700
No repository found containing: org.eclipse.update.feature,org.eclipse.team.svn.resource.ignore.rules.jdt,0.7.9.I20110523-1700

这一切意味着什么，我该如何解决?如果Eclipse能够联系存储库来检查新文件，为什么它不能从这些存储库下载这些文件呢?或者错误消息意味着完全不同的东西?