Error message when running jforum in tomcat..

[Migrated From Jforum.net]

I downloaded 2.1.7 to:
C:\Program Files\Apache Software Foundation\Tomcat 6.0\webapps and extracted it with winzip, to the same dir, and renamed to jforum.

It shows in tomcat manager as: /jforum JForum - Powering Communities

But when i hit the "Start" button in tomcat manager, i get this error:
Message: FAIL - Application at context path /jforum could not be started

anyone know what i missed in the installation?

C:\Program Files\Apache Software Foundation\Tomcat 6.0\webapps\jforum is the location to my jforum root dir.

Apache Tomcat 6.0.9 Server
jre1.5.0_11
MySQL Server 5.2

Error log in tomcat:

09.feb.2007 12:30:30 org.apache.catalina.core.StandardContext listenerStart
SEVERE: Error configuring application listener of class net.jforum.ForumSessionListener
java.lang.ClassNotFoundException: net.jforum.ForumSessionListener
	at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1358)
	at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1204)
	at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3770)
	at org.apache.catalina.core.StandardContext.start(StandardContext.java:4336)
	at org.apache.catalina.manager.ManagerServlet.start(ManagerServlet.java:1177)
	at org.apache.catalina.manager.HTMLManagerServlet.start(HTMLManagerServlet.java:542)
	at org.apache.catalina.manager.HTMLManagerServlet.doGet(HTMLManagerServlet.java:105)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:228)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:525)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:212)
	at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:866)
	at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:716)
	at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1498)
	at java.lang.Thread.run(Unknown Source)
09.feb.2007 12:30:30 org.apache.catalina.core.StandardContext listenerStart
SEVERE: Skipped installing application listeners due to previous error(s)

another edit: it works fine with same setup and jforum 2.1.6 :roll:
[originally posted on jforum.net by Trout]

[Migrated From Jforum.net]

ClassNotFound when the class is obviously in the classpath (i.e., in the WEB-INF/classes/net/jforum directory) is usually either a ClassLoader security issue or a missing jar.

Looking at the code for ForumSessionListener I see that it uses log4j. This might be the problem. Make sure the log4j*.jar is in the WEB-INF/lib directory.

Greg
[originally posted on jforum.net by monroe]

[Migrated From Jforum.net]

Unfortulatelly, the current 2.1.7 release misses the log4j-jar. We'll release a second version that includes it.

Rafael
[originally posted on jforum.net by Rafael Steil]

[Migrated From Jforum.net]

The second release are now available
[originally posted on jforum.net by lazee]