Hi, I don’t know if it was you but this was also raised in jira at https://jira.xwiki.org/browse/XE-1610
I don’t know the answer as this stage but it looks very weird. I’m sure someone will provide a solution by tomorrow EOD. Thanks -Vincent > On 8 Feb 2017, at 18:42, Ligth <ya.est.s...@yandex.ru> wrote: > > Hi. > > > We have upgraded xwiki enterprise from 8 to 9.0 versionb on debian: > > apt-get update && apt-get upgrade > > # dpkg -l | grep xwiki > ii xwiki-enterprise-common 9.0+3 > ii xwiki-enterprise-pgsql-common 9.0+3 > ii xwiki-enterprise-tomcat8-common 9.0+3 > ii xwiki-enterprise-tomcat8-pgsql 9.0+3 > > > And now we can't get started xwiki. The following error is received: > > SEVERE: Exception sending context initialized event to listener instance of > class org.xwiki.container.servlet.XWikiServletContextListener > java.lang.NoClassDefFoundError: Failed to get fields for class > [org.xwiki.activeinstalls.internal.client.DefaultPingSender] because the > class [io/searchbox/Action] couldn't be found in the ClassLoader. > at > org.xwiki.component.util.ReflectionUtils.getAllFields(ReflectionUtils.java:72) > at > org.xwiki.component.annotation.ComponentDescriptorFactory.createComponentDescriptor(ComponentDescriptorFactory.java:132) > at > org.xwiki.component.annotation.ComponentDescriptorFactory.createComponentDescriptors(ComponentDescriptorFactory.java:105) > at > org.xwiki.component.annotation.ComponentAnnotationLoader.register(ComponentAnnotationLoader.java:168) > at > org.xwiki.component.annotation.ComponentAnnotationLoader.initialize(ComponentAnnotationLoader.java:136) > at > org.xwiki.component.annotation.ComponentAnnotationLoader.initialize(ComponentAnnotationLoader.java:118) > at > org.xwiki.component.embed.EmbeddableComponentManager.initialize(EmbeddableComponentManager.java:151) > at > org.xwiki.container.servlet.XWikiServletContextListener.contextInitialized(XWikiServletContextListener.java:61) > at > org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4832) > at > org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5256) > at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) > at > org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:724) > at > org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:700) > at > org.apache.catalina.core.StandardHost.addChild(StandardHost.java:714) > at > org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:581) > at > org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1685) > at > java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) > at java.util.concurrent.FutureTask.run(FutureTask.java:266) > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) > at java.lang.Thread.run(Thread.java:745) > > фев 08, 2017 6:03:35 PM org.apache.catalina.core.StandardContext startInternal > SEVERE: Error listenerStart > > > Can someone help ? > > >