In core Serclets and
JSP by marty hall 2nd edition book it is given ,to uncomment line servlet-mapping element in web.xml file in order to enable invoker servlet.But when I do that and verify by running command catalina run from c:\tomcat\bin directory I am getting the following error.
SEVERE: Parse error in default web.xml
java.lang.IllegalArgumentException:
Servlet mapping specifies an unknown servlet name invoker
Please Can anybody help me out?
Veena