Mapping Error when includes files in struts.xml file

in this example , when i m use action mapping direct in struts.xml file then the example run succefulle , but when use <include ...> tag to include the mapping file, then it generate following error

Menu.jsp File

struts.xml file

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
    "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
    "http://struts.apache.org/dtds/struts-2.0.dtd">

<constant name="struts.devMode" value="true" />
 		
		
		
		<package name="default" namespace="/" extends="struts-default"> 
			<action name="register">
				<result>/jsp/userForm.jsp</result>
			</action>
		</package>	
		
    <include file="com/struts/action/chapterThree.xml"/>
 
</struts>

action class

chapterThree.xml file

and the error is

Struts Problem Report

Struts has detected an unhandled exception:

Messages:	
There is no Action mapped for action name userDetails.
Stacktraces

There is no Action mapped for action name userDetails. - [unknown location]
    com.opensymphony.xwork2.DefaultActionProxy.prepare(DefaultActionProxy.java:186)
    org.apache.struts2.impl.StrutsActionProxyFactory.createActionProxy(StrutsActionProxyFactory.java:41)
    org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:494)
    org.apache.struts2.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.java:419)
    org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
    org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:224)
    org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169)
    org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
    org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
    org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
    org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:927)
    org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
    org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
    org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:987)
    org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:579)
    org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:307)
    java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
    java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    java.lang.Thread.run(Unknown Source)
    
You are seeing this page because development mode is enabled. Development mode, or devMode, enables extra debugging behaviors and reports to assist developers. To disable this mode, set:

struts.devMode=false
in your WEB-INF/classes/struts.properties file.

Hi Jmmy,

Why you have struts.xml and chapterthree.xml...

Put the action mapping in struts.xml file then try it will work. there isnt any action define for userdetails thts what your stack trace says.

Regards
Jatan

yes , when adding the action mapping in struts.xml file instead of chapterThree.xml file the example work