Libor Zoubek [http://community.jboss.org/people/lzoubek%40redhat.com] replied to the discussion "'Could not find default Drools runtime' error in Eclipse" To view the discussion, visit: http://community.jboss.org/message/552490#552490 -------------------------------------------------------------- You'll need to edit .project file in your project directory and delete <buildCommand>     <name>org.drools.eclipse.droolsbuilder</name>     <arguments>     </arguments></buildCommand> then re-import your project into workspace. Delete it first (without deleting from file system) and then import it as existing project. It worked at least for me. -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/552490#552490] Start a new discussion in JBoss Tools at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&...]