javax.faces.FacesException: #{teste.sayHello}: javax.el.PropertyNotFoundException: /index.xhtml @30,65 action="#{teste.sayHello}": Target Unreachable, identifier 'teste' resolved to null

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#{teste.sayHello}: javax.el.PropertyNotFoundException: /index.xhtml @30,65 action="#{teste.sayHello}": Target Unreachable, identifier 'teste' resolved to null
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#{kBrowser.sortCifByColumn(5)}: javax.el.MethodNotFoundException: /detailed_criterion_impact.xhtml @151,135 action="#{kBrowser.sortCifByColumn(5)}": Method not found: eu.scape_project.planning.criteria.bean.KBrowser@67323d9f.sortCifByColumn(java.lang.Long)
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#{workflowstep.setTreeFromRecordAltern(record,altern)}: javax.el.MethodNotFoundException: /plato/shared/fileMatrix.xhtml @57,30 action="#{workflowstep.setTreeFromRecordAltern(record,altern)}": Method not found: eu.scape_project.planning.plato.wfview.fte.FTEvaluateAlternativesView@435e331b.setTreeFromRecordAltern(eu.scape_project.planning.model.SampleObject, eu.scape_project.planning.model.Alternative)
javax.el.PropertyNotFoundException: /index.xhtml @30,65 action="#{teste.sayHello}": Target Unreachable, identifier 'teste' resolved to null	at com.sun.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:70)	at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:77)	at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:91)	at javax.faces.component.UICommand.broadcast(UICommand.java:383)	at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:447)	at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:752)	at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:97)	at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:251)	at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:117)	at com.icesoft.faces.webapp.http.core.JsfLifecycleExecutor.apply(JsfLifecycleExecutor.java:17)	at com.icesoft.faces.webapp.http.core.ReceiveSendUpdates.renderCycle(ReceiveSendUpdates.java:94)	at com.icesoft.faces.webapp.http.core.ReceiveSendUpdates.service(ReceiveSendUpdates.java:54)	at com.icesoft.faces.webapp.http.core.RequestVerifier.service(RequestVerifier.java:26)	at com.icesoft.faces.webapp.http.common.standard.PathDispatcherServer.service(PathDispatcherServer.java:24)	at com.icesoft.faces.webapp.http.servlet.MainSessionBoundServlet.service(MainSessionBoundServlet.java:160)	at com.icesoft.faces.webapp.http.servlet.SessionDispatcher$1.service(SessionDispatcher.java:38)	at com.icesoft.faces.webapp.http.servlet.ThreadBlockingAdaptingServlet.service(ThreadBlockingAdaptingServlet.java:19)	at com.icesoft.faces.webapp.http.servlet.EnvironmentAdaptingServlet.service(EnvironmentAdaptingServlet.java:63)	at com.icesoft.faces.webapp.http.servlet.SessionDispatcher.service(SessionDispatcher.java:55)	at com.icesoft.faces.webapp.http.servlet.SessionVerifier.service(SessionVerifier.java:19)	at com.icesoft.faces.webapp.http.servlet.PathDispatcher.service(PathDispatcher.java:23)	at com.icesoft.faces.webapp.http.servlet.MainServlet.service(MainServlet.java:91)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:831)	at com.icesoft.faces.webapp.xmlhttp.BlockingServlet.service(BlockingServlet.java:56)	at org.apache.catalina.core.ApplicationFilterChain.servletService(ApplicationFilterChain.java:411)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:317)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:198)	at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:83)	at org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:58)	at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)	at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:64)	at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)	at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45)	at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)	at org.jboss.seam.web.IdentityFilter.doFilter(IdentityFilter.java:40)	at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)	at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:230)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:198)	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:288)	at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:271)	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:202)	at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:632)	at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:577)	at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:94)	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:206)	at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:632)	at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:577)	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:571)	at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:1080)	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:150)	at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:632)	at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:577)	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:571)	at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:1080)	at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:272)	at com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.invokeAdapter(DefaultProcessorTask.java:637)	at com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.doProcess(DefaultProcessorTask.java:568)	at com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.process(DefaultProcessorTask.java:813)	at com.sun.enterprise.web.connector.grizzly.DefaultReadTask.executeProcessorTask(DefaultReadTask.java:341)	at com.sun.enterprise.web.connector.grizzly.DefaultReadTask.doTask(DefaultReadTask.java:263)	at com.sun.enterprise.web.connector.grizzly.DefaultReadTask.doTask(DefaultReadTask.java:214)	at com.sun.enterprise.web.connector.grizzly.TaskBase.run(TaskBase.java:265)	at com.sun.enterprise.web.connector.grizzly.ssl.SSLWorkerThread.run(SSLWorkerThread.java:106)