Hello, Sorry for the duplicate post, the previous one got inserted into another thread (also sorry for that). So here it is... in its own thread :-). I plan to use the Drools Eclipse plugin in order to create rules with both the "Guided rule" editor and the "Rule resource" editor, and I would like to write a rather "generic" piece of code (using a KnowledgeBuilder) in order to setup a KnowledgeBase from the rule files contained in a directory. Would you say that am I completly re-inventing something that already exists? If not, is there is a convention related to building a rule base from a directory containing a mix of Drools files (drools.package, BRL, DRL...) created with the Drools Eclipse plugin? My first experiments showed that, in a directory containing only a BRL file and its associated "drools.package" file: * If I add both the "drools.package" file (as a DRL resource), then the BRL file (as a BRL resource) into the KnowledgeBuilder, I get a compilation error telling "Unable to resolve ObjectType 'Document'" * If I concatenate the content of the "drools.package" file and the result of the "BRL 2 DRL" conversion into a single DRL file, then add that unique DRL file (as a DRL resource) into the KnowledgeBuilder, everything is fine. Does any of you have an idea where I am mistaken? Many thanks in advance, Best regards, Bruno.