Message.warn("unknown configuration '"+conf+"' in "+node.getResolvedId()+": ignoring");
Message.warn("configuration not found '"+conf+"' in "+node.getResolvedId()+": ignoring");
    private void doFetchDependencies(IvyNode node, String conf) {        Configuration c = node.getConfiguration(conf);        if (c == null) {            Message.warn("unknown configuration '"+conf+"' in "+node.getResolvedId()+": ignoring");            if (node.getParent() != null) {                Message.warn("it was asked from "+node.getParent().getResolvedId());            }            return;        }        // we handle the case where the asked configuration extends others:        // we have to first fetch the extended configurations        String[] extendedConfs = c.getExtends();        if (extendedConfs.length > 0) {            node.updateConfsToFetch(Arrays.asList(extendedConfs));        }        for (int i = 0; i < extendedConfs.length; i++) {            fetchDependencies(node, extendedConfs[i]);        }                if (node.getDependencyDescriptor() == null || node.getDependencyDescriptor().isTransitive()) {            Collection dependencies = node.getDependencies(conf, true);            for (Iterator iter = dependencies.iterator(); iter.hasNext();) {                IvyNode dep = (IvyNode)iter.next();                if (dep.isCircular()) {                    Message.warn("circular dependency found ! "+node.getId()+" depends on "+dep.getId()+" which is already on the same branch of dependency");                    continue;                }                String[] confs = dep.getRequiredConfigurations(node, conf);                for (int i = 0; i < confs.length; i++) {                    fetchDependencies(dep, confs[i]);                }                // if there are still confs to fetch (usually because they have                // been updated when evicting another module), we fetch them now                confs = dep.getConfsToFetch();                for (int i = 0; i < confs.length; i++) {                    fetchDependencies(dep, confs[i]);                }            }        }            }