我正在尝试更新Eclipse插件(使用"检查更新")，但我一直得到一长串错误。我想这是更新网站列表的问题，但我之前已经能够更新。知道我哪里做错了吗?
(多行都是这样…)
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,ch.qos.logback.slf4j,1.0.7.v20121108-1250
No repository found containing: osgi.bundle,com.google.appengine.eclipse.core,3.2.4.v201306061638-rel-r42
No repository found containing: osgi.bundle,com.google.appengine.eclipse.datatools,3.2.4.v201306061638-rel-r42
No repository found containing: osgi.bundle,com.google.appengine.eclipse.webtools,3.2.4.v201306061638-rel-r42
No repository found containing: osgi.bundle,com.google.appengine.eclipse.webtools.e42,3.2.4.v201306061638-rel-r42
No repository found containing: osgi.bundle,com.google.gdt.eclipse.appengine.rpc,3.2.4.v201306061638-rel-r42
No repository found containing: osgi.bundle,com.google.gdt.eclipse.appengine.swarm,3.2.4.v201306061638-rel-r42
No repository found containing: osgi.bundle,com.google.gdt.eclipse.appengine.swarm_backend,3.2.4.v201306061638-rel-r42
No repository found containing: osgi.bundle,com.google.gdt.eclipse.appsmarketplace,3.2.4.v201306061638-rel-r42
No repository found containing: osgi.bundle,com.google.gdt.eclipse.core,3.2.4.v201306061638-rel-r42
No repository found containing: osgi.bundle,com.google.gdt.eclipse.gph,3.2.4.v201306061638-rel-r42
No repository found containing: osgi.bundle,com.google.gdt.eclipse.gph.e36,3.2.4.v201306061638-rel-r42
No repository found containing: osgi.bundle,com.google.gdt.eclipse.gph.hge,3.2.4.v201306061638-rel-r42
No repository found containing: osgi.bundle,com.google.gdt.eclipse.gph.subclipse,3.2.4.v201306061638-rel-r42
No repository found containing: osgi.bundle,com.google.gdt.eclipse.gph.subversive,3.2.4.v201306061638-rel-r42
No repository found containing: osgi.bundle,com.google.gdt.eclipse.login,3.2.4.v201306061638-rel-r42
No repository found containing: osgi.bundle,com.google.gdt.eclipse.managedapis,3.2.4.v201306061638-rel-r42
No repository found containing: osgi.bundle,com.google.gdt.eclipse.maven,3.2.4.v201306061638-rel-r42
No repository found containing: osgi.bundle,com.google.gdt.eclipse.maven.e37,3.2.4.v201306061638-rel-r42
No repository found containing: osgi.bundle,com.google.gdt.eclipse.platform,3.2.4.v201306061638-rel-r42
No repository found containing: osgi.bundle,com.google.gdt.eclipse.platform.e42,3.2.4.v201306061638-rel-r42
No repository found containing: osgi.bundle,com.google.gdt.eclipse.platform.shared,3.2.4.v201306061638-rel-r42
No repository found containing: osgi.bundle,com.google.gdt.eclipse.suite,3.2.4.v201306061638-rel-r42
No repository found containing: osgi.bundle,com.google.gdt.eclipse.suite.ext,3.2.4.v201306061638-rel-r42
No repository found containing: osgi.bundle,com.google.gwt.eclipse.core,3.2.4.v201306061638-rel-r42
No repository found containing: osgi.bundle,com.google.gwt.eclipse.oophm,3.2.4.v201306061638-rel-r42
我在尝试安装eclipse的gae插件时遇到了这个错误。我的解决方案是删除更新站点，然后重新添加并再次尝试安装。
花了几个小时后，我意识到我在使用VPN。当我禁用它时，错误就消失了!