ok. found the error. i added a line which should execute a function wtih no entries in conditions . this should set a default value. any idea how to do this? ----- Original Message ----- From: Sascha To: rules-users(a)lists.jboss.org Sent: Sunday, September 07, 2008 10:12 AM Subject: [rules-users] invalid rule package I'm a member of the drools mailinglist, so please answer me am using jbpm with drools. my rules are defined in an excel sheet. where must i install the class referenced in the excel sheet? org.drools.rule.InvalidRulePackage: Rule Compilation error formular(my class) cannot be resolved ------------------------------------------------------------------------------ _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users