JSF not working in Jboss

I am attempting to get JSF running (for the first time) in jboss and running into some problems

I am just trying to run a simple example from JSF The complete Reference (Chap 2)

So far I have the following

/JSFContext
META-INF
WEB-INF
-classes
-lib
commons jars
jstl jars
jsf-impl & jsf-core
tlds
web.xml
faces-config.xml
index.jsp
main.jsp
blah blah

I can get to the index.jsp page which is just a simple html page. The problem happens when I click the first link to go to a jsf page. i get the following.
I could swear i have this set up correctly (but my errors are telling me differently ;) )

Thanks for any help!

root cause
 
org.apache.jasper.JasperException: Exception in JSP: /main.jsp:4
 
1: <%@ page contentType="text/html"%>
2: <%@ taglib uri="http://java.sun.com/jsf/core" prefix="f"%>
3: <%@ taglib uri="http://java.sun.com/jsf/html" prefix="h"%>
4: <f:view>
5:   <html>
6:     <head>
7:       <title>A Simple JavaServer Faces Registration Application</title>

Stacktrace:
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:504)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:393)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
com.sun.faces.context.ExternalContextImpl.dispatch(ExternalContextImpl.java:346)
com.sun.faces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:152)
com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:107)
com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:268)
com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:137)
javax.faces.webapp.FacesServlet.service(FacesServlet.java:214)
org.apache.jasper.runtime.PageContextImpl.doForward(PageContextImpl.java:703)
org.apache.jasper.runtime.PageContextImpl.forward(PageContextImpl.java:670)
org.apache.jsp.index_jsp._jspService(index_jsp.java:50)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:332)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
 
root cause
 
java.lang.NullPointerException
javax.faces.webapp.UIComponentTag.setupResponseWriter(UIComponentTag.java:615)
javax.faces.webapp.UIComponentTag.doStartTag(UIComponentTag.java:217)
org.apache.myfaces.taglib.core.ViewTag.doStartTag(ViewTag.java:71)
org.apache.jsp.main_jsp._jspx_meth_f_view_0(main_jsp.java:86)
org.apache.jsp.main_jsp._jspService(main_jsp.java:64)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:332)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
com.sun.faces.context.ExternalContextImpl.dispatch(ExternalContextImpl.java:346)
com.sun.faces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:152)
com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:107)
com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:268)
com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:137)
javax.faces.webapp.FacesServlet.service(FacesServlet.java:214)
org.apache.jasper.runtime.PageContextImpl.doForward(PageContextImpl.java:703)
org.apache.jasper.runtime.PageContextImpl.forward(PageContextImpl.java:670)
org.apache.jsp.index_jsp._jspService(index_jsp.java:50)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:332)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)

Have you setup the web.xml correctly?

it looks like the objects used in the main.jsp has some issues, which caused the nullpointer exception.

Try to identity the problem:
copy the index.jsp contect to main.jsp, if it works,which means the problem is the content of the main.jsp, then added the content little by little.