Help!

[robby zeng]

Hi,    I am a new comer of turbine. I just installed turbine in Tomcat following the steps mentioned in the manual, but when i try to access the url http://127.0.0.1:8080/turbine/servlet/Turbine it gives me the error message   <FONT face=Arial size=3>Exception: org.apache.turbine.services.InstantiationException: Service TurbineWebMacroService failed to initialize: init() failed to initialize service TurbineWebMacroService at org.apache.turbine.services.BaseServiceBroker.getService(BaseServiceBroker.java:226) at org.apache.turbine.services.webmacro.TurbineWebMacro.getContext(TurbineWebMacro.java:123) at org.apache.turbine.modules.pages.WebMacroSitePage.doBuildBeforeAction(WebMacroSitePage.java:93) at org.apache.turbine.modules.pages.DefaultPage.doBuild(DefaultPage.java:144) at org.apache.turbine.modules.Page.build(Page.java:92) at org.apache.turbine.modules.PageLoader.exec(PageLoader.java:122) at org.apache.turbine.Turbine.doGet(Turbine.java:366) at javax.servlet.http.HttpServlet.service(HttpServlet.java:740) at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) at org.apache.tomcat.core.ServletWrapper.doService(ServletWrapper.java:387) at org.apache.tomcat.core.Handler.service(Handler.java:263) at org.apache.tomcat.core.ServletWrapper.service(ServletWrapper.java:371) at org.apache.tomcat.core.ContextManager.internalService(ContextManager.java:749) at org.apache.tomcat.core.ContextManager.service(ContextManager.java:695) at org.apache.tomcat.service.http.HttpConnectionHandler.processConnection(HttpConnectionHandler.java:207) at org.apache.tomcat.service.TcpWorkerThread.runIt(PoolTcpEndpoint.java:403) at org.apache.tomcat.util.ThreadPool$ControlRunnable.run(ThreadPool.java:498) at java.lang.Thread.run(Thread.java:484)</FONT><FONT face=Arial>Can any body help me? thx a lot!!! </FONT>�