Hello logback users, When trying out perf4j's recently added support for logback I followed example from perf4j logback package javadoc which can be found here: http://perf4j.codehaus.org/apidocs/index.html?org/perf4j/logback/package-sum... That example at the moment has a bug, perf4jFileAppender is referenced from a logger, but the appender is listed in configuration file after logger. Logback's AppenderRefAction reports this as an error with following code {code} ... Appender appender = (Appender) appenderBag.get(appenderName); if (appender == null) { String msg = "Could not find an appender named [" + appenderName + "]. Did you define it below in the config file?"; inError = true; addError(msg); addError("See " + CoreConstants.CODES_URL + "#appender_order for more details."); return; } ... {code} Url this produces in logback-classic 0.9.30 is http://logback.qos.ch/codes.html#appender_order When accessed, error codes page opens, but on it there is no explanation for this error and in the page source there is no element with appender_order id. Couldn't find in the history of the codes.html page ( https://github.com/ceki/logback/commits/master/logback-site/src/site/pages/c... ) one revision that ever had this. Am I missing something or is this a bug in logback site? Regards, Stevo.