STRUTS2 Convention零配置 放进jar包报错问题

早日看了一个贴，贴名： 简述STRUTS2 Convention零配置 .
http://blog.csdn.net/Beacher_Ma/article/details/4733227我用的strut2,.1，在myeclipse8.6下开发，将struts-Convention-plugin-2.1.6.jar文件复制到WEB-INF/lib路径下，启动tomcat就报一下错了…… 求原因……信息: Parsing configuration file [struts-plugin.xml]
2011-8-8 17:02:56 com.opensymphony.xwork2.util.logging.commons.CommonsLogger error
严重: Dispatcher initialization failed
Unable to load configuration. - bean - jar:file:/D:/tomcat-6.0.18/webapps/no/WEB-INF/lib/struts2-convention-plugin-2.1.6.jar!/struts-plugin.xml:38:161
at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:58)
at org.apache.struts2.dispatcher.Dispatcher.init_PreloadConfiguration(Dispatcher.java:374)
at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:418)
at org.apache.struts2.dispatcher.ng.InitOperations.initDispatcher(InitOperations.java:69)
at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.init(StrutsPrepareAndExecuteFilter.java:51)
at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:275)
at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:397)
at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:108)
at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:3709)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4363)
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:525)
at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:926)
at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:889)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:492)
at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1217)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:293)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)
at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:1337)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1601)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1610)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1590)
at java.lang.Thread.run(Thread.java:619)
Caused by: Unable to load bean: type:com.opensymphony.xwork2.config.PackageProvider class:org.apache.struts2.convention.ClasspathPackageProvider - bean - jar:file:/D:/tomcat-6.0.18/webapps/no/WEB-INF/lib/struts2-convention-plugin-2.1.6.jar!/struts-plugin.xml:38:161
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.register(XmlConfigurationProvider.java:221)
at org.apache.struts2.config.StrutsXmlConfigurationProvider.register(StrutsXmlConfigurationProvider.java:101)
at com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:169)
at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:55)
... 23 more
Caused by: Bean type interface com.opensymphony.xwork2.config.PackageProvider with the name convention.packageProvider has already been loaded by bean - jar:file:/D:/tomcat-6.0.18/webapps/no/WEB-INF/lib/struts2-convention-plugin-2.1.8.1.jar!/struts-plugin.xml:38:161 - bean - jar:file:/D:/tomcat-6.0.18/webapps/no/WEB-INF/lib/struts2-convention-plugin-2.1.6.jar!/struts-plugin.xml:38:161
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.register(XmlConfigurationProvider.java:205)
... 26 more
2011-8-8 17:02:56 org.apache.catalina.core.StandardContext filterStart
严重: Exception starting filter struts2
Unable to load configuration. - bean - jar:file:/D:/tomcat-6.0.18/webapps/no/WEB-INF/lib/struts2-convention-plugin-2.1.6.jar!/struts-plugin.xml:38:161
at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:431)
at org.apache.struts2.dispatcher.ng.InitOperations.initDispatcher(InitOperations.java:69)
at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.init(StrutsPrepareAndExecuteFilter.java:51)
at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:275)
at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:397)
at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:108)
at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:3709)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4363)
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:525)
at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:926)
at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:889)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:492)
at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1217)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:293)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)
at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:1337)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1601)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1610)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1590)
at java.lang.Thread.run(Thread.java:619)
Caused by: Unable to load configuration. - bean - jar:file:/D:/tomcat-6.0.18/webapps/no/WEB-INF/lib/struts2-convention-plugin-2.1.6.jar!/struts-plugin.xml:38:161
at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:58)
at org.apache.struts2.dispatcher.Dispatcher.init_PreloadConfiguration(Dispatcher.java:374)
at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:418)
... 21 more
Caused by: Unable to load bean: type:com.opensymphony.xwork2.config.PackageProvider class:org.apache.struts2.convention.ClasspathPackageProvider - bean - jar:file:/D:/tomcat-6.0.18/webapps/no/WEB-INF/lib/struts2-convention-plugin-2.1.6.jar!/struts-plugin.xml:38:161
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.register(XmlConfigurationProvider.java:221)
at org.apache.struts2.config.StrutsXmlConfigurationProvider.register(StrutsXmlConfigurationProvider.java:101)
at com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:169)
at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:55)
... 23 more
Caused by: Bean type interface com.opensymphony.xwork2.config.PackageProvider with the name convention.packageProvider has already been loaded by bean - jar:file:/D:/tomcat-6.0.18/webapps/no/WEB-INF/lib/struts2-convention-plugin-2.1.8.1.jar!/struts-plugin.xml:38:161 - bean - jar:file:/D:/tomcat-6.0.18/webapps/no/WEB-INF/lib/struts2-convention-plugin-2.1.6.jar!/struts-plugin.xml:38:161
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.register(XmlConfigurationProvider.java:205)
... 26 more
2011-8-8 17:02:56 org.apache.catalina.core.StandardContext start
严重: Error filterStart
2011-8-8 17:02:56 org.apache.catalina.core.StandardContext start
严重: Context [/no] startup failed due to previous errors