当我在liferay-portlet.xml文件上注册BaseIndexer类时，出现此错误。我使用Liferay-7并使用liferay-plugins SDK开发portlet。仅当我在liferay-portlet.xml中注册BaseIndexer类时才会出现此错误。我恳请任何人对错误进行校正，并随时询问有关我的平台的更多信息。Liferay Plugins SDK为BooleanFilter抛出NoClassDefFoundError类
步骤承诺： 我试图将许多版本的com.liferay.kernal jar文件添加到项目中。
14:59:15,488 INFO [pool-116-thread-2][PortletHotDeployListener:201] Registering portlets for MyCT-portlet 14:59:15,504 ERROR [pool-116-thread-2][HotDeployImpl:240] com.liferay.portal.kernel.deploy.hot.HotDeployException: Error registering portlets for MyCT-portlet com.liferay.portal.kernel.deploy.hot.HotDeployException: Error registering portlets for MyCT-portlet at com.liferay.portal.kernel.deploy.hot.BaseHotDeployListener.throwHotDeployException(BaseHotDeployListener.java:38) at com.liferay.portal.deploy.hot.PortletHotDeployListener.invokeDeploy(PortletHotDeployListener.java:97) at com.liferay.portal.deploy.hot.HotDeployImpl.doFireDeployEvent(HotDeployImpl.java:237) at com.liferay.portal.deploy.hot.HotDeployImpl.fireDeployEvent(HotDeployImpl.java:104) at com.liferay.portal.kernel.deploy.hot.HotDeployUtil.fireDeployEvent(HotDeployUtil.java:28) at com.liferay.portal.kernel.servlet.PluginContextListener.fireDeployEvent(PluginContextListener.java:164) at com.liferay.portal.kernel.servlet.PluginContextListener.doPortalInit(PluginContextListener.java:154) at com.liferay.portal.kernel.util.BasePortalLifecycle.portalInit(BasePortalLifecycle.java:44) at com.liferay.portal.kernel.util.PortalLifecycleUtil.register(PortalLifecycleUtil.java:75) at com.liferay.portal.kernel.util.PortalLifecycleUtil.register(PortalLifecycleUtil.java:58) at com.liferay.portal.kernel.util.BasePortalLifecycle.registerPortalLifecycle(BasePortalLifecycle.java:54) at com.liferay.portal.kernel.servlet.PluginContextListener.contextInitialized(PluginContextListener.java:116) at com.liferay.portal.osgi.web.wab.extender.internal.adapter.ServletContextListenerExceptionAdapter.contextInitialized(ServletContextListenerExceptionAdapter.java:51) at sun.reflect.GeneratedMethodAccessor462.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.eclipse.equinox.http.servlet.internal.registration.ListenerRegistration$EventListenerInvocationHandler.invoke(ListenerRegistration.java:145) at com.sun.proxy.$Proxy503.contextInitialized(Unknown Source) at org.eclipse.equinox.http.servlet.internal.context.ContextController.doAddListenerRegistration(ContextController.java:357) at org.eclipse.equinox.http.servlet.internal.context.ContextController.addListenerRegistration(ContextController.java:310) at org.eclipse.equinox.http.servlet.internal.customizer.ContextListenerTrackerCustomizer.addingService(ContextListenerTrackerCustomizer.java:67) at org.eclipse.equinox.http.servlet.internal.customizer.ContextListenerTrackerCustomizer.addingService(ContextListenerTrackerCustomizer.java:1) at org.osgi.util.tracker.ServiceTracker$Tracked.customizerAdding(ServiceTracker.java:941) at org.osgi.util.tracker.ServiceTracker$Tracked.customizerAdding(ServiceTracker.java:1) at org.osgi.util.tracker.AbstractTracked.trackAdding(AbstractTracked.java:256) at org.osgi.util.tracker.AbstractTracked.track(AbstractTracked.java:229) at org.osgi.util.tracker.ServiceTracker$Tracked.serviceChanged(ServiceTracker.java:901) at org.eclipse.osgi.internal.serviceregistry.FilteredServiceListener.serviceChanged(FilteredServiceListener.java:109) at org.eclipse.osgi.internal.framework.BundleContextImpl.dispatchEvent(BundleContextImpl.java:917) at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230) at org.eclipse.osgi.framework.eventmgr.ListenerQueue.dispatchEventSynchronous(ListenerQueue.java:148) at org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.publishServiceEventPrivileged(ServiceRegistry.java:862) at org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.publishServiceEvent(ServiceRegistry.java:801) at org.eclipse.osgi.internal.serviceregistry.ServiceRegistrationImpl.register(ServiceRegistrationImpl.java:127) at org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.registerService(ServiceRegistry.java:225) at org.eclipse.osgi.internal.framework.BundleContextImpl.registerService(BundleContextImpl.java:464) at org.eclipse.osgi.internal.framework.BundleContextImpl.registerService(BundleContextImpl.java:482) at org.eclipse.osgi.internal.framework.BundleContextImpl.registerService(BundleContextImpl.java:1001) at com.liferay.portal.osgi.web.wab.extender.internal.WabBundleProcessor.initListeners(WabBundleProcessor.java:569) at com.liferay.portal.osgi.web.wab.extender.internal.WabBundleProcessor.init(WabBundleProcessor.java:201) at com.liferay.portal.osgi.web.wab.extender.internal.WebBundleDeployer._initWabBundle(WebBundleDeployer.java:186) at com.liferay.portal.osgi.web.wab.extender.internal.WebBundleDeployer.doStart(WebBundleDeployer.java:106) at com.liferay.portal.osgi.web.wab.extender.internal.WabFactory$WABExtension.start(WabFactory.java:158) at org.apache.felix.utils.extender.AbstractExtender.createExtension(AbstractExtender.java:259) at org.apache.felix.utils.extender.AbstractExtender.modifiedBundle(AbstractExtender.java:232) at org.osgi.util.tracker.BundleTracker$Tracked.customizerModified(BundleTracker.java:482) at org.osgi.util.tracker.BundleTracker$Tracked.customizerModified(BundleTracker.java:1) at org.osgi.util.tracker.AbstractTracked.track(AbstractTracked.java:232) at org.osgi.util.tracker.BundleTracker$Tracked.bundleChanged(BundleTracker.java:444) at org.eclipse.osgi.internal.framework.BundleContextImpl.dispatchEvent(BundleContextImpl.java:905) at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230) at org.eclipse.osgi.framework.eventmgr.ListenerQueue.dispatchEventSynchronous(ListenerQueue.java:148) at org.eclipse.osgi.internal.framework.EquinoxEventPublisher.publishBundleEventPrivileged(EquinoxEventPublisher.java:165) at org.eclipse.osgi.internal.framework.EquinoxEventPublisher.publishBundleEvent(EquinoxEventPublisher.java:75) at org.eclipse.osgi.internal.framework.EquinoxEventPublisher.publishBundleEvent(EquinoxEventPublisher.java:67) at org.eclipse.osgi.internal.framework.EquinoxContainerAdaptor.publishModuleEvent(EquinoxContainerAdaptor.java:102) at org.eclipse.osgi.container.Module.publishEvent(Module.java:461) at org.eclipse.osgi.container.Module.start(Module.java:452) at org.eclipse.osgi.internal.framework.EquinoxBundle.start(EquinoxBundle.java:402) at org.eclipse.osgi.internal.framework.EquinoxBundle.start(EquinoxBundle.java:421) at aQute.remote.agent.AgentServer.start(AgentServer.java:163) at sun.reflect.GeneratedMethodAccessor1147.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at aQute.remote.util.Link.executeCommand(Link.java:335) at aQute.remote.util.Link$2.run(Link.java:173) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:748) Caused by: java.lang.NoClassDefFoundError: com.liferay.portal.kernel.search.filter.BooleanFilter cannot be found by MyCT-portlet_7.0.0.1 at com.sun.proxy.$Proxy878.(Unknown Source) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:423) at com.liferay.portal.kernel.util.ProxyUtil.newProxyInstance(ProxyUtil.java:114) at com.liferay.portal.kernel.util.ProxyFactory.newInstance(ProxyFactory.java:57) at com.liferay.portlet.PortletBagFactory.newInstance(PortletBagFactory.java:494) at com.liferay.portlet.PortletBagFactory.newInstance(PortletBagFactory.java:486) at com.liferay.portlet.PortletBagFactory.newIndexers(PortletBagFactory.java:474) at com.liferay.portlet.PortletBagFactory.create(PortletBagFactory.java:121) at com.liferay.portal.service.impl.PortletLocalServiceImpl.initWAR(PortletLocalServiceImpl.java:869) at sun.reflect.GeneratedMethodAccessor809.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:163) at com.liferay.portal.spring.aop.ServiceBeanAopProxy.invoke(ServiceBeanAopProxy.java:169) at com.sun.proxy.$Proxy123.initWAR(Unknown Source) at com.liferay.portal.kernel.service.PortletLocalServiceUtil.initWAR(PortletLocalServiceUtil.java:332) at com.liferay.portal.deploy.hot.PortletHotDeployListener.doInvokeDeploy(PortletHotDeployListener.java:209) at com.liferay.portal.deploy.hot.PortletHotDeployListener.invokeDeploy(PortletHotDeployListener.java:94) ... 67 more