I completely removed my local repository then I figure out something is wrong. I got the following error: [WARNING] The POM for org.drools:org.drools.core:jar:6.0.0-SNAPSHOT is missing, no dependency information available [ERROR] Failed to execute goal on project drools.osgi.it.bootstrap: Could not find artifact org.drools:org.drools.core:jar:6.0.0-SNAPSHOT in jboss-public (http://repository.jboss.org/nexus/content/groups/public) -> [Help 1] regards, Cristiano