I have changed the defualt Derby DB to MySQL  DB for the JacRabbit in Guvnor. I see this below exception when I try to up the JBOSS 5.0.1 AS and Guvnor. I get the error when I execute the deployement server Jboss 5.0.1. And a log file give me the following error: Class path contains multiple SLF4J bindings. ........................ ......................... org.jboss.seam.servlet.SeamListener org.jboss.seam.InstantiationException: Could not instantiate Seam component: repositoryConfiguration Thanks -- View this message in context: http://drools.46999.n3.nabble.com/MySQL-and-Derby-issues-with-Guvnor-tp40... Sent from the Drools: User forum mailing list archive at Nabble.com.