Exception in Struts namespace

Guys,

I'm facing a small problem when trying to access an action class. Below is how the exception stack trace:

INFO: Server startup in 3392 ms
27959 WARN  ServletUrlRenderer  - No configuration found for the specified action: 'welcomeAction' i
n namespace: '/'. Form action defaulting to 'action' attribute's literal value.
28418 WARN  ServletUrlRenderer  - No configuration found for the specified action: 'welcomeAction' i
n namespace: '/'. Form action defaulting to 'action' attribute's literal value.
36740 WARN  Dispatcher  - Could not find action or result
There is no Action mapped for namespace / and action name welcomeAction. - [unknown location]
        at com.opensymphony.xwork2.DefaultActionProxy.prepare(DefaultActionProxy.java:177)
        at org.apache.struts2.impl.StrutsActionProxy.prepare(StrutsActionProxy.java:61)
        at org.apache.struts2.impl.StrutsActionProxyFactory.createActionProxy(StrutsActionProxyFacto
ry.java:39)
        at com.opensymphony.xwork2.DefaultActionProxyFactory.createActionProxy(DefaultActionProxyFac
tory.java:47)
        at org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:458)
        at org.apache.struts2.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.java:395)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.j
ava:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)

at org.springframework.orm.jpa.support.OpenEntityManagerInViewFilter.doFilterInternal(OpenEn
tityManagerInViewFilter.java:112)
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76
)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.j
ava:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)

at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
        at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:852)
        at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.ja
va:588)
        at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
        at java.lang.Thread.run(Thread.java:619)

The tiles definition would look like this:

My action mapping looks like below:

Are there any startup errors?

No.

Does it mean that my form action should be /welcomeAction instead of just welcomeAction?

Here is my jsp page which I submit to an action:

I missed to include the struts-xxx.xml file. Now getting another error as below:

type Exception report

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

org.apache.tiles.definition.NoSuchDefinitionException: welcome
	org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:392)
	org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:368)
	org.apache.struts2.views.tiles.TilesResult.doExecute(TilesResult.java:104)
	org.apache.struts2.dispatcher.StrutsResultSupport.execute(StrutsResultSupport.java:186)
	com.opensymphony.xwork2.DefaultActionInvocation.executeResult(DefaultActionInvocation.java:361)
	com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:265)
	com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:163)
	com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87)
	com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)
	com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:249)
	org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:68)
	com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87)
	com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)
	com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.intercept(ConversionErrorInterceptor.java:122)
	com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)
	com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:195)
	com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87)
	com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)
	com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:195)
	com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87)
	com.opensymphony.xwork2.DefaultActionInvocation.
invoke(DefaultActionInvocation.java:236)
	com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.
intercept(StaticParametersInterceptor.java:148)
	com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)
	org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInterceptor.java:93)
	com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)
	org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:235)
	com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)
	com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(ModelDrivenInterceptor.java:89)
	com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)
	com.opensymphony.xwork2.interceptor.ScopedModelDrivenInterceptor.
intercept(ScopedModelDrivenInterceptor.java:128)
	com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)
	org.apache.struts2.interceptor.ProfilingActivationInterceptor.intercept(ProfilingActivationInterceptor.java:104)
	com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)
	org.apache.struts2.interceptor.debugging.DebuggingInterceptor.intercept(DebuggingInterceptor.java:267)
	com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)
	com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(ChainingInterceptor.java:126)
	com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)
	com.opensymphony.xwork2.interceptor.PrepareInterceptor.doIntercept(PrepareInterceptor.java:138)
	com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87)
	com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)
	com.opensymphony.xwork2.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:148)
	com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)
	org.apache.struts2.interceptor.ServletConfigInterceptor.intercept(ServletConfigInterceptor.java:164)
	com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)
	com.opensymphony.xwork2.interceptor.AliasInterceptor.intercept(AliasInterceptor.java:128)
	com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)
	com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor
.intercept(ExceptionMappingInterceptor.java:176)
	com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)
	org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:52)
	org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:468)
	org.apache.struts2.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.java:395)
	org.springframework.orm.jpa.support.OpenEntityManagerInViewFilter.
doFilterInternal(OpenEntityManagerInViewFilter.java:112)
	org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)

Oh yes, this time around forgot to include the tiles-xxx.xml to my web.xml. It now works just fine.