Hello. I'm using logback as logging utility of my bundle integrated in Knopflerfish OSGI framework. In order to enable Groovy support I installed and started groovy-all-2.1.5.jar in the framework. However, I keep getting the following exception when I start the framework [stderr] Failed to instantiate [ch.qos.logback.classic.LoggerContext] [stderr] Reported exception: [stderr] groovy.lang.MissingPropertyException: No such property: FileAppender for class: Script1 [stderr] at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.unwrap(ScriptBytecodeAdapter.ja va:50) [stderr] at org.codehaus.groovy.runtime.callsite.PogoGetPropertySite.getProperty(PogoGetPrope rtySite.java:49) So, what's wrong here? :) Thank you for any support in advance! BR Ewgenij