Bom dia,
Estou iniciando no JSF e tive um problema ao tentar colocar o RichFaces no meu projeto. A principio seguem as configurações:
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app id="WebApp_ID" version="2.5"
	xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
	<display-name>Financeiro</display-name>
	<context-param>
		<description>State saving method: 'client' or 'server' (=default). See JSF Specification 2.5.2</description>
		<param-name>javax.faces.STATE_SAVING_METHOD</param-name>
		<param-value>client</param-value>
	</context-param>
	<context-param>
		<param-name>javax.servlet.jsp.jstl.fmt.localizationContext</param-name>
		<param-value>resources.application</param-value>
	</context-param>
	<context-param>
		<param-name>org.richfaces.SKIN</param-name>
		<param-value>blueSky</param-value>
	</context-param>
	<context-param>
		<param-name>org.richfaces.CONTROL_SKINNING</param-name>
		<param-value>enable</param-value>
	</context-param>
	<filter>
		<display-name>RichFaces Filter</display-name>
		<filter-name>richfaces</filter-name>
		<filter-class>org.ajax4jsf.Filter</filter-class>
	</filter>
	<filter-mapping>
		<filter-name>richfaces</filter-name>
		<servlet-name>Faces Servlet</servlet-name>
		<dispatcher>REQUEST</dispatcher>
		<dispatcher>FORWARD</dispatcher>
		<dispatcher>INCLUDE</dispatcher>
	</filter-mapping>
	<listener>
		<listener-class>com.sun.faces.config.ConfigureListener</listener-class>
	</listener>
	<servlet>
		<servlet-name>Faces Servlet</servlet-name>
		<servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
		<load-on-startup>1</load-on-startup>
	</servlet>
	<servlet-mapping>
		<servlet-name>Faces Servlet</servlet-name>
		<url-pattern>/faces/*</url-pattern>
	</servlet-mapping>
	<servlet-mapping>
		<servlet-name>Faces Servlet</servlet-name>
		<url-pattern>*.jsf</url-pattern>
	</servlet-mapping>
	<servlet-mapping>
		<servlet-name>Faces Servlet</servlet-name>
		<url-pattern>*.faces</url-pattern>
	</servlet-mapping>
	<welcome-file-list>
		<welcome-file>index.html</welcome-file>
		<welcome-file>index.htm</welcome-file>
		<welcome-file>index.jsp</welcome-file>
		<welcome-file>default.html</welcome-file>
		<welcome-file>default.htm</welcome-file>
		<welcome-file>default.jsp</welcome-file>
	</welcome-file-list>
	<login-config>
		<auth-method>BASIC</auth-method>
	</login-config>
</web-app>
faces-config.xml
<?xml version="1.0" encoding="UTF-8"?>
<faces-config version="1.2" xmlns="http://java.sun.com/xml/ns/javaee"
 xmlns:xi="http://www.w3.org/2001/XInclude"
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-facesconfig_1_2.xsd">
 <converter>
  <converter-for-class>java.lang.Enum</converter-for-class>
  <converter-class>financeiro.conversores.EnumConverter</converter-class>
 </converter>
 <converter>
  <converter-for-class>financeiro.dominio.Pessoa</converter-for-class>
  <converter-class>financeiro.conversores.PessoaConverter</converter-class>
 </converter>
 <managed-bean>
  <managed-bean-name>cadastroContaBean</managed-bean-name>
  <managed-bean-class>financeiro.visao.CadastroContaBean</managed-bean-class>
  <managed-bean-scope>session</managed-bean-scope>
 </managed-bean>
 <managed-bean>
  <managed-bean-name>consultaContaBean</managed-bean-name>
  <managed-bean-class>financeiro.visao.ConsultaContaBean</managed-bean-class>
  <managed-bean-scope>session</managed-bean-scope>
 </managed-bean>
 <managed-bean>
  <managed-bean-name>helloRichBean</managed-bean-name>
  <managed-bean-class>financeiro.visao.HelloRichBean</managed-bean-class>
  <managed-bean-scope>request</managed-bean-scope>
 </managed-bean>
 <navigation-rule>
  <navigation-case>
   <from-outcome>cadastroConta</from-outcome>
   <to-view-id>/contas/cadastroConta.jsp</to-view-id>
  </navigation-case>
  <navigation-case>
   <from-outcome>consultaConta</from-outcome>
   <to-view-id>/contas/consultaConta.jsp</to-view-id>
  </navigation-case>
  <navigation-case>
   <from-outcome>menu</from-outcome>
   <to-view-id>/menu.jsp</to-view-id>
  </navigation-case>
 </navigation-rule>
 <application>
  <message-bundle>financeiro.recursos.messages</message-bundle>
 </application>
</faces-config>
Bibliotecas usadas
[list]MojarraJSF 1.2
Tomcat 6.0.29
Hibernate 3.2
Apache Commons Logging 1.1.1
Apache Commons BeansUtils 1.8.3
Apache Commons Digester 2.1
RichFaces 3.3.3[/list]
E o erro que dá é este:
log4j:WARN No appenders could be found for logger (org.ajax4jsf.renderkit.ChameleonRenderKitFactory).
log4j:WARN Please initialize the log4j system properly.
13/10/2010 08:54:57 org.apache.catalina.core.StandardContext listenerStart
SEVERE: Exception sending context initialized event to listener instance of class com.sun.faces.config.ConfigureListener
com.sun.faces.config.ConfigurationException: CONFIGURATION FAILED! null
	at com.sun.faces.config.ConfigManager.initialize(ConfigManager.java:214)
	at com.sun.faces.config.ConfigureListener.contextInitialized(ConfigureListener.java:199)
	at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4135)
	at org.apache.catalina.core.StandardContext.start(StandardContext.java:4630)
	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
	at org.apache.catalina.core.StandardHost.start(StandardHost.java:785)
	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
	at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:445)
	at org.apache.catalina.core.StandardService.start(StandardService.java:519)
	at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
	at org.apache.catalina.startup.Catalina.start(Catalina.java:581)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)
	at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)
Caused by: java.lang.NullPointerException
	at org.apache.commons.digester.Digester.getXMLReader(Digester.java:1068)
	at org.apache.commons.digester.Digester.parse(Digester.java:1916)
	at org.ajax4jsf.resource.ResourceBuilderImpl.registerConfig(ResourceBuilderImpl.java:211)
	at org.ajax4jsf.resource.ResourceBuilderImpl.registerResources(ResourceBuilderImpl.java:155)
	at org.ajax4jsf.resource.ResourceBuilderImpl.init(ResourceBuilderImpl.java:226)
	at org.ajax4jsf.renderkit.ChameleonRenderKitFactory.<init>(ChameleonRenderKitFactory.java:62)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
	at javax.faces.FactoryFinder.getImplGivenPreviousImpl(FactoryFinder.java:519)
	at javax.faces.FactoryFinder.getImplementationInstance(FactoryFinder.java:405)
	at javax.faces.FactoryFinder.access$400(FactoryFinder.java:135)
	at javax.faces.FactoryFinder$FactoryManager.getFactory(FactoryFinder.java:717)
	at javax.faces.FactoryFinder.getFactory(FactoryFinder.java:239)
	at com.sun.faces.config.processor.FactoryConfigProcessor.verifyFactoriesExist(FactoryConfigProcessor.java:187)
	at com.sun.faces.config.processor.FactoryConfigProcessor.process(FactoryConfigProcessor.java:132)
	at com.sun.faces.config.ConfigManager.initialize(ConfigManager.java:204)
	... 16 more
Já pesquisei e não encontrei a resposta, desde já agradeço pela atenção