Downloaded 4.2.3.GA. Set up jboss_home and included the bin in the path variable. After run.bat, the start up process stopped in the middle. Last message in the boot.log is | 17:00:22,165 DEBUG [Server] Starting General Purpose Architecture (GPA)... | 17:00:22,275 WARN [BasicMBeanRegistry] preRegister() failed for JMImplementation:type=MBeanServerDelegate: | java.lang.NoSuchFieldError: TRACE | at org.jboss.logging.Log4jLoggerPlugin.isTraceEnabled(Log4jLoggerPlugin.java:85) ........ | and further down | 17:00:22,275 DEBUG [Server] Failed to start | java.lang.RuntimeException: Cannot create MBeanServer | at org.jboss.mx.server.MBeanServerImpl.<init>(MBeanServerImpl.java:239) ....... | The installation was a clean one. So I think the problem is something outside the package. Can anybody help me on this. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4179507#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...