Hi I am currently trying to implement Drools 5.0.CR1 with grails, I have created a couple of domain classes which are simple Groovy classes with a couple of fields. I want to load these classes as my model into Guvnor and then create rules using those classes. I am having a few problems when "Saving and Validating" my configuration. I have a war file that is generated using maven and it has my classes files inside it in /WEB-INF/classes/ . I load the war as my model and the classes are shown on the packages main page but the following error is given when pressing "Save and Validate configuration" [ERR 102] Line 1:10 mismatched input '-' I have also tried using groovyc to compile my class files then jar'ing them up and loading that as the model but got another error:- java.lang.ClassNotFoundException: groovy.lang.GroovyObject I was wondering if it is possible to use groovy compiled class files and if it is then does anyone know what my issue might be or how it is meant to be done correctly. Thanks in advance for any help Daniel Lees -- View this message in context: http://www.nabble.com/Using-groovy-classes-as-Fact-Classes-in-Guvnor-tp23... Sent from the drools - user mailing list archive at Nabble.com.