Hello, I bought a book called "Mastering Apache Velocity" by Gradecki and Cole. It involved downloading/extracting Maverick. The book stated that I should place the friendbook-jsp.war file into Tomcat's webapps directory plus moving log4j.jar and then startup Tomcat. Unfortunately, I get the following error in the Tomcat's log during startup... please help... Thank you in advance for anyone's help. 2004-01-24 07:58:26 StandardContext[/friendbook-jsp]: Servlet /friendbook-jsp threw load() exception javax.servlet.ServletException: Error instantiating servlet class org.infohazard.maverick.Dispatcher at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:912) at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:823) at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:3422) at org.apache.catalina.core.StandardContext.start(StandardContext.java:3623) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:821) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:807) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:595) at org.apache.catalina.core.StandardHostDeployer.install(StandardHostDeployer.java:307) at org.apache.catalina.core.StandardHost.install(StandardHost.java:788) at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:492) at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:400) at org.apache.catalina.startup.HostConfig.run(HostConfig.java:851) at java.lang.Thread.run(Thread.java:536) ----- Root Cause ----- java.lang.NoClassDefFoundError: org/apache/log4j/Category at org.infohazard.maverick.Dispatcher.<clinit>(Dispatcher.java:141) 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:274) at java.lang.Class.newInstance0(Class.java:306) at java.lang.Class.newInstance(Class.java:259) at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:903) at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:823) at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:3422) at org.apache.catalina.core.StandardContext.start(StandardContext.java:3623) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:821) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:807) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:595) at org.apache.catalina.core.StandardHostDeployer.install(StandardHostDeployer.java:307) at org.apache.catalina.core.StandardHost.install(StandardHost.java:788) at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:492) at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:400) at org.apache.catalina.startup.HostConfig.run(HostConfig.java:851) at java.lang.Thread.run(Thread.java:536) 2004-01-24 07:58:26 StandardWrapper[/friendbook-jsp:invoker]: Loading container servlet invoker
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