Problem with deploy servlet

I am developer in netbeans 5.5 and tomcat 5.5.17. I have nine servlet and i am uncomment the function INVOKER in the tomcat's web.xml, but tomcat not find the servlet and send me this error: 03/12/2007 03:46:50 PM org.apache.catalina.core.ApplicationContext log INFO: Marcando el servlet org.apac

No run servlet

I have uncomment the invoker parameter in tomcat's web.xml. How i solver this error? 03/12/2007 12:12:34 PM org.apache.catalina.core.ApplicationContext log INFO: Marcando el servlet org.apache.catalina.INVOKER.org.empresa.general.mvc.listado.MyServlet como no disponible 03/12/2007 12:12:34 P