[rules-users] again eval

Hi rule when item : eval(Factory.getList().contains(id)) then end resolves into [10/24/07 17:50:55:636 CEST] 00000030 SystemErr R org.drools.rule.InvalidRulePackage: Rule Compilation error : [Rule name=Rule1, agendaGroup=MAIN, salience=30, no-loop=false] package/Rule_Rule1_0.java (13:756) : The method eval(boolean) is undefined for the type Rule_Rule1_0 what does it mean? Cheers Markus