Hi Guys, I am experiencing something which was already posted a couple of weeks ago. I finally defined my own "rule.package" file with all the imports I needed in order to get the class names, coming out from the wizard window. By the time I have a .dsl definition within the Drools Rule Project (IDE 4.0.3 on Eclipse 3.3) I decided to use the .dsl sentences in the Guided editor. So, when I define the "when" condition everything goes smoothly. When I decide to pick up a sentence (a dsl occurrence) from the action field, eclipse gives me back an error on the .brl file. So the problem comes out once I want to add a dsl sentence using the guided rule editor. I think Shahad Ahmed experienced the same issue. Thank You anyway. Massi