Hello: I get the following errors when I start up jBoss (4.2.1.GA): ------------------------------------------------- ERROR [STDERR] log4j:ERROR A "org.jboss.logging.appender.FileAppend er" object is not assignable to a "org.apache.log4j.Appender" variable. ERROR [STDERR] log4j:ERROR Could not instantiate appender named "FILE". My jboss-log4j.xml file is as follows: ----------------------------------- <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE log4j:configuration SYSTEM "log4j.dtd"> <log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/" debug="false"> <param name="DatePattern" value="'.'yyyy-MM-dd"/> <!-- The default pattern: Date Priority [Category] Message\n --> <appender-ref ref="HVGN"/> <appender-ref ref="CONSOLE"/> <appender-ref ref="FILE"/> </log4j:configuration> ------------------------------------------------ The log file for the HVGN appender is created but nothing is written to it when "duke" and descendant package class files issue log statements. In addition, despite the error with the FILE appender, content is still written to server.log. I don't see an error in my jboss-log4j.xml file. I tried to substitue in "jboss.logging.appender" for the class attributes in the appenders, but I get the same errors. Anybody got any ideas? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4115582#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...