Hello Friends, previously i used wicket 1.2.7 jar wicket extension 1.2.7 jar and servlet-api-2.5-6.0.1.jar my wicket page is worked well. now i have changed wicket 1.4-rc5. jar wicket extension 1.4-rc5. jar and servlet-api-2.5-6.0.1.jar my web.xml written like this
<?xml version="1.0" encoding="UTF-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; xmlns=" http://java.sun.com/xml/ns/javaee"; xmlns:web=" http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"; xsi:schemaLocation=" http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"; id="WebApp_ID" version="2.5"> <display-name>Wicket Examples</display-name> <welcome-file-list> <welcome-file>test.html</welcome-file> </welcome-file-list> <servlet> <servlet-name>HelloWorldApplication</servlet-name> <servlet-class>org.apache.wicket.protocol.http.WicketServlet</servlet-class> <init-param> <param-name>applicationClassName</param-name> <param-value>helloworld.HelloWorldApplication</param-value> </init-param> </servlet> <servlet-mapping> <servlet-name>HelloWorldApplication</servlet-name> <url-pattern>/helloworld/*</url-pattern> </servlet-mapping> </web-app> When i run this page it shows the error javax.servlet.ServletException: Error instantiating servlet class org.apache.wicket.protocol.http.WicketServlet java.lang.NoClassDefFoundError: org/slf4j/LoggerFactory. How can i solve it. please give me solution to solve this problem is there any .jar files i need to include? or i need to change my web.xml file??? -- Thanks®ards, Gerald A
