我正在使用 XWIKI ENTERPRISE 2.5 并希望将其升级到 4.4 或 4.3（稳定版）我找到了 XWiki 的升级文档。按照指南，我将重要文件备份到WEB-INF. 之后，我将所有文件从 new 复制.war到我的 wiki 目录 ( /var/lib/tomcat6/webapps/xwiki)。然后，我将重要文件移回并覆盖了新文件。
当我访问我的 wiki 页面时，我收到此错误消息：
HTTP Status 404 - type Status report
message description
The requested resource () is not available.
Apache Tomcat/6.0.28
这是日志文件：
SCHWERWIEGEND: Exception sending context initialized event to listener instance of class org.xwiki.container.servlet.XWikiServletContextListener
java.lang.RuntimeException: Failed to find the Observation Manager component
at org.xwiki.container.servlet.XWikiServletContextListener.contextInitialized(XWikiServletContextListener.java:101)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4135)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4630)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:791)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:771)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:546)
at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1041)
at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:964)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:502)
at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1277)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:321)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:785)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:445)
at org.apache.catalina.core.StandardService.start(StandardService.java:519)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
at org.apache.catalina.startup.Catalina.start(Catalina.java:581)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)
Caused by: org.xwiki.component.manager.ComponentLookupException: Failed to lookup component [org.xwiki.observation.internal.DefaultObservationManager] identifier by [role = [interface org.xwiki.observation.ObservationManager] hint = [default]]
at org.xwiki.component.embed.EmbeddableComponentManager.getComponentInstance(EmbeddableComponentManager.java:348)
at org.xwiki.component.embed.EmbeddableComponentManager.getInstance(EmbeddableComponentManager.java:155)
at org.xwiki.container.servlet.XWikiServletContextListener.contextInitialized(XWikiServletContextListener.java:99)
... 24 more
Caused by: org.xwiki.component.phase.InitializationException: Failed to lookup Event Listeners
at org.xwiki.observation.internal.DefaultObservationManager.initialize(DefaultObservationManager.java:139)
at org.xwiki.component.embed.InitializableLifecycleHandler.handle(InitializableLifecycleHandler.java:39)
at org.xwiki.component.embed.EmbeddableComponentManager.createInstance(EmbeddableComponentManager.java:323)
at org.xwiki.component.embed.EmbeddableComponentManager.getComponentInstance(EmbeddableComponentManager.java:378)
at org.xwiki.component.embed.EmbeddableComponentManager.getComponentInstance(EmbeddableComponentManager.java:346)
... 26 more
Caused by: org.xwiki.component.manager.ComponentLookupException: Failed to lookup component [role = [interface org.xwiki.observation.EventListener] hint = [default]]
at org.xwiki.component.embed.EmbeddableComponentManager.getInstanceMap(EmbeddableComponentManager.java:187)
at org.xwiki.component.embed.EmbeddableComponentManager.getInstanceList(EmbeddableComponentManager.java:169)
at org.xwiki.observation.internal.DefaultObservationManager.initialize(DefaultObservationManager.java:135)
... 30 more
Caused by: org.xwiki.component.manager.ComponentLookupException: Failed to lookup component [org.xwiki.security.authorization.cache.internal.DefaultSecurityCache] identifier by [role = [interface org.xwiki.security.authorization.cache.SecurityCache] hint = [default]]
at org.xwiki.component.embed.EmbeddableComponentManager.getComponentInstance(EmbeddableComponentManager.java:348)
at org.xwiki.component.embed.EmbeddableComponentManager.getInstance(EmbeddableComponentManager.java:161)
at org.xwiki.component.embed.EmbeddableComponentManager.createInstance(EmbeddableComponentManager.java:312)
at org.xwiki.component.embed.EmbeddableComponentManager.getComponentInstance(EmbeddableComponentManager.java:378)
at org.xwiki.component.embed.EmbeddableComponentManager.getInstanceMap(EmbeddableComponentManager.java:185)
... 32 more
Caused by: org.xwiki.component.phase.InitializationException: Unable to create the security cache with a capacity of 500
at org.xwiki.security.authorization.cache.internal.DefaultSecurityCache.newCache(DefaultSecurityCache.java:104)
at org.xwiki.security.authorization.cache.internal.DefaultSecurityCache.initialize(DefaultSecurityCache.java:112)
at org.xwiki.component.embed.InitializableLifecycleHandler.handle(InitializableLifecycleHandler.java:39)
at org.xwiki.component.embed.EmbeddableComponentManager.createInstance(EmbeddableComponentManager.java:323)
at org.xwiki.component.embed.EmbeddableComponentManager.getComponentInstance(EmbeddableComponentManager.java:378)
at org.xwiki.component.embed.EmbeddableComponentManager.getComponentInstance(EmbeddableComponentManager.java:346)
... 36 more
Caused by: org.xwiki.cache.CacheException: Failed to get cache factory for role hint [infinispan]
at org.xwiki.cache.internal.DefaultCacheManager.createNewCache(DefaultCacheManager.java:109)
at org.xwiki.cache.internal.DefaultCacheManager.createNewCache(DefaultCacheManager.java:85)
at org.xwiki.security.authorization.cache.internal.DefaultSecurityCache.newCache(DefaultSecurityCache.java:102)
... 41 more
Caused by: org.xwiki.component.manager.ComponentLookupException: Failed to lookup component [org.xwiki.cache.infinispan.internal.InfinispanCacheFactory] identifier by [role = [interface org.xwiki.cache.CacheFactory] hint = [infinispan]]
at org.xwiki.component.embed.EmbeddableComponentManager.getComponentInstance(EmbeddableComponentManager.java:348)
at org.xwiki.component.embed.EmbeddableComponentManager.getInstance(EmbeddableComponentManager.java:161)
at org.xwiki.cache.internal.DefaultCacheManager.createNewCache(DefaultCacheManager.java:107)
... 43 more
Caused by: org.infinispan.jmx.JmxDomainConflictException: Domain already registered org.xwiki.infinispan
at org.infinispan.jmx.JmxUtil.buildJmxDomain(JmxUtil.java:73)
at org.infinispan.jmx.CacheManagerJmxRegistration.updateDomain(CacheManagerJmxRegistration.java:92)
at org.infinispan.jmx.CacheManagerJmxRegistration.buildRegistrar(CacheManagerJmxRegistration.java:86)
at org.infinispan.jmx.AbstractJmxRegistration.registerMBeans(AbstractJmxRegistration.java:46)
at org.infinispan.jmx.CacheManagerJmxRegistration.start(CacheManagerJmxRegistration.java:62)
at org.infinispan.manager.DefaultCacheManager.start(DefaultCacheManager.java:720)
at org.infinispan.manager.DefaultCacheManager.<init>(DefaultCacheManager.java:388)
at org.infinispan.manager.DefaultCacheManager.<init>(DefaultCacheManager.java:353)
at org.xwiki.cache.infinispan.internal.InfinispanCacheFactory.initialize(InfinispanCacheFactory.java:104)
at org.xwiki.component.embed.InitializableLifecycleHandler.handle(InitializableLifecycleHandler.java:39)
at org.xwiki.component.embed.EmbeddableComponentManager.createInstance(EmbeddableComponentManager.java:323)
at org.xwiki.component.embed.EmbeddableComponentManager.getComponentInstance(EmbeddableComponentManager.java:378)
at org.xwiki.component.embed.EmbeddableComponentManager.getComponentInstance(EmbeddableComponentManager.java:346)
... 45 more