It wasn't Guvnor, but drools. I updated the Compatibility Matrix in droolsjbpm-knowledge on master and accidentally pushed the 5.5.x changes too. So the droolsjbpm-knowledge introductory documentation module has the wrong parent pom version. The deployment to Nexus of 5.5.x is in progress. Once this is complete I can push the final pom changes (with the others) and normal service should be restored. Apologies for the inconvenience. sent on the move On 23 Oct 2012 11:55, "Toni Rikkola" <toni.rikkola(a)gmail.com&gt; wrote: