Deployment on tomcat

Hello all,

I'm new to roller, i.e. I want to try it. unfortunately I'm stuck in
deployment process and I hope that you might help me.

In my logfile I always get the following error message (tomcat 6, sun java
1.6, ubuntu, latest roller bin from website):

Apr 21, 2013 1:58:53 PM org.apache.catalina.core.StandardContext
listenerStart
SEVERE: Error configuring application listener of class
org.apache.roller.weblogger.ui.core.RollerContext
java.lang.ExceptionInInitializerError
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
Method)
        at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
        at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:532)
        at java.lang.Class.newInstance0(Class.java:374)
        at java.lang.Class.newInstance(Class.java:327)
        at
org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3787)
        at
org.apache.catalina.core.StandardContext.start(StandardContext.java:4338)
        at
org.apache.catalina.manager.ManagerServlet.start(ManagerServlet.java:1247)
        at
org.apache.catalina.manager.HTMLManagerServlet.start(HTMLManagerServlet.java:604)
        at
org.apache.catalina.manager.HTMLManagerServlet.doGet(HTMLManagerServlet.java:129)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:616)
        at
org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:244)
        at java.security.AccessController.doPrivileged(Native Method)
        at javax.security.auth.Subject.doAsPrivileged(Subject.java:537)
        at
org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java:276)
        at
org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:162)
        at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:283)
        at
org.apache.catalina.core.ApplicationFilterChain.access$000(ApplicationFilterChain.java:56)
        at
org.apache.catalina.core.ApplicationFilterChain$1.run(ApplicationFilterChain.java:189)
        at java.security.AccessController.doPrivileged(Native Method)
        at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:185)
        at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
        at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
        at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:525)
        at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
        at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
        at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
        at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
        at
org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:190)
        at
org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:291)
        at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:769)
        at
org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:698)
        at
org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:891)
        at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:690)
        at java.lang.Thread.run(Thread.java:679)
Caused by: org.apache.commons.logging.LogConfigurationException:
User-specified log class 'org.apache.commons.logging.impl.Log4JLogger'
cannot be found or is not useable.
        at
org.apache.commons.logging.impl.LogFactoryImpl.discoverLogImplementation(LogFactoryImpl.java:874)
        at
org.apache.commons.logging.impl.LogFactoryImpl.newInstance(LogFactoryImpl.java:604)
        at
org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:336)
        at
org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:310)
        at org.apache.commons.logging.LogFactory.getLog(LogFactory.java:685)
        at
org.apache.roller.weblogger.ui.core.RollerContext.<clinit>(RollerContext.java:66)
        ... 41 more

Thanks a lot for your help.

Best regards,
Martin