Exception starting filter struts2 Unable to load configuration. - bean - jar:file:/E:/apache-tomcat-7.0.11/webapps/ssh/WEB-INF/lib/struts2-core-2.2.3.1.jar!/struts-default.xml:29:72 at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:428) 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.initFilter(ApplicationFilterConfig.java:273) at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:254) at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:372) at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:98) at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4542) at org.apache.catalina.core.StandardContext$2.call(StandardContext.java:5220) at org.apache.catalina.core.StandardContext$2.call(StandardContext.java:5215) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303) at java.util.concurrent.FutureTask.run(FutureTask.java:138) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907) at java.lang.Thread.run(Thread.java:619) Caused by: Unable to load configuration. - bean - jar:file:/E:/apache-tomcat-7.0.11/webapps/ssh/WEB-INF/lib/struts2-core-2.2.3.1.jar!/struts-default.xml:29:72 at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:69) at org.apache.struts2.dispatcher.Dispatcher.init_PreloadConfiguration(Dispatcher.java:371) at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:415) ... 14 more Caused by: Unable to load bean: type: class:com.opensymphony.xwork2.ObjectFactory - bean - jar:file:/E:/apache-tomcat-7.0.11/webapps/ssh/WEB-INF/lib/struts2-core-2.2.3.1.jar!/struts-default.xml:29:72 at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.register(XmlConfigurationProvider.java:232) at org.apache.struts2.config.StrutsXmlConfigurationProvider.register(StrutsXmlConfigurationProvider.java:101) at com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:180) at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:66) ... 16 more Caused by: Bean type class com.opensymphony.xwork2.ObjectFactory with the name xwork has already been loaded by bean - jar:file:/E:/apache-tomcat-7.0.11/webapps/ssh/WEB-INF/lib/struts2-core-2.2.1.jar!/struts-default.xml:29:72 - bean - jar:file:/E:/apache-tomcat-7.0.11/webapps/ssh/WEB-INF/lib/struts2-core-2.2.3.1.jar!/struts-default.xml:29:72 at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.register(XmlConfigurationProvider.java:216) ... 19 more