how to use the servlet service framework

ption: Failed to process pipeline at [SAXParseException] - servlet:/rsc3-servlet-wrapper:1:55 at - file:///home/gilles/workspace/cswisoap-block/./src/main/resources/COB-INF/sitemap.xmap:158:36 at - file:///home/gilles/workspace/cswisoap-block/./src/main/resources/COB-INF/sitemap.xmap:

extra-classpath issue ?

b/ directory of cocoon webapp, everything works fine... I've browsed the cocoon-users list archives : it seems that some people meet the same problem, but I didn't found any answer. Does anyone have an idea ? Thanks, Gilles ---