HTTP ERROR 500

Problem accessing /jenkins/view/All/createItem. Reason:

hudson.model.TopLevelItemDescriptor.newInstance(Lhudson/model/ItemGroup;Ljava/lang/String;)Lhudson/model/TopLevelItem;

Caused by:

java.lang.AbstractMethodError: hudson.model.TopLevelItemDescriptor.newInstance(Lhudson/model/ItemGroup;Ljava/lang/String;)Lhudson/model/TopLevelItem;
at hudson.model.ItemGroupMixIn.createProject(ItemGroupMixIn.java:244)
at hudson.model.ItemGroupMixIn.createTopLevelItem(ItemGroupMixIn.java:171)
at hudson.model.Hudson.doCreateItem(Hudson.java:2635)
at hudson.model.AllView.doCreateItem(AllView.java:73)
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.kohsuke.stapler.Function$InstanceFunction.invoke(Function.java:282)
at org.kohsuke.stapler.Function.bindAndInvoke(Function.java:149)
at org.kohsuke.stapler.Function.bindAndInvokeAndServeResponse(Function.java:88)
at org.kohsuke.stapler.MetaClass$1.doDispatch(MetaClass.java:102)
at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:53)
at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:562)
at org.kohsuke.stapler.Stapler.invoke(Stapler.java:640)
at org.kohsuke.stapler.MetaClass$7.doDispatch(MetaClass.java:242)
at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:53)
at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:562)
at org.kohsuke.stapler.Stapler.invoke(Stapler.java:640)
at org.kohsuke.stapler.Stapler.invoke(Stapler.java:478)
at org.kohsuke.stapler.Stapler.service(Stapler.java:160)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:520)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1200)
at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:94)
at hudson.plugins.audit_trail.AuditTrailFilter.doFilter(AuditTrailFilter.java:65)
at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:97)
at hudson.plugins.greenballs.GreenBallFilter.doFilter(GreenBallFilter.java:52)
at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:97)
at hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:86)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1171)
at hudson.security.csrf.CrumbFilter.doFilter(CrumbFilter.java:47)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1171)
at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:84)
at hudson.security.UnwrapSecurityExceptionFilter.doFilter(UnwrapSecurityExceptionFilter.java:51)
at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)
at org.acegisecurity.ui.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:166)
at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)
at org.acegisecurity.providers.anonymous.AnonymousProcessingFilter.doFilter(AnonymousProcessingFilter.java:125)
at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)
at org.acegisecurity.ui.rememberme.RememberMeProcessingFilter.doFilter(RememberMeProcessingFilter.java:142)
at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)
at org.acegisecurity.ui.AbstractProcessingFilter.doFilter(AbstractProcessingFilter.java:271)
at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)
at org.acegisecurity.ui.basicauth.BasicProcessingFilter.doFilter(BasicProcessingFilter.java:173)
at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)
at org.acegisecurity.context.HttpSessionContextIntegrationFilter.doFilter(HttpSessionContextIntegrationFilter.java:249)
at hudson.security.HttpSessionContextIntegrationFilter2.doFilter(HttpSessionContextIntegrationFilter2.java:66)
at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)
at hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:76)
at hudson.security.HudsonFilter.doFilter(HudsonFilter.java:164)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1171)
at hudson.util.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:81)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1171)
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:421)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:118)
at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:456)
at org.eclipse.jetty.server.session.SessionHandler.handle(SessionHandler.java:181)
at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:159)
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:913)
at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:138)
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:360)
at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:136)
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:859)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:116)
at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:243)
at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:126)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:115)
at org.eclipse.jetty.server.Server.handle(Server.java:325)
at org.eclipse.jetty.server.HttpConnection.handleRequest(HttpConnection.java:539)
at org.eclipse.jetty.server.HttpConnection$RequestHandler.content(HttpConnection.java:896)
at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:745)
at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:218)
at org.eclipse.jetty.server.HttpConnection.handle(HttpConnection.java:398)
at org.eclipse.jetty.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:423)
at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:404)
at java.lang.Thread.run(Thread.java:619)