Greetings all, I posted this to the Seam users forum and they recommended I post it here as well. I am using Seam 2.0.0 and Drools 4.0.7. I am getting the following exception when my rule is compiled on first access. Rule: package org.ebsinc.ia.rules #list any import classes here. import org.ebsinc.ia.entity.BenefitAnalysis; import org.ebsinc.ia.entity.RetirementEligibility; #declare any global variables here rule "Verify FERS" when $ba : BenefitAnalysis(plan == "FERS") $elig : RetirementEligibility(eligible == false) then System.out.println("FERS retirement"); $elig.setReason("ok"); end components.xml <drools:rule-base name="securityRules" > <drools:rule-files> <value>/security.drl</value> </drools:rule-files> </drools:rule-base> <drools:rule-base name="retirementEligibility"> <drools:rule-files> <value>/RetirementEligibility.drl</value> </drools:rule-files> </drools:rule-base> <drools:managed-working-memory name="retirementEligibilityWM" scope="event" auto-create="true" rule-base="#{retirementEligibility}" /> Exception: 2008-08-26 08:40:37,750 ERROR [STDERR] at org.drools.rule.builder.dialect.java.JavaConsequenceBuilder.build(JavaConsequenceBuilder.java:123) at org.drools.rule.builder.RuleBuilder.build(RuleBuilder.java:67) at org.drools.compiler.PackageBuilder.addRule(PackageBuilder.java:446) at org.drools.compiler.PackageBuilder.addPackage(PackageBuilder.java:304) at org.drools.compiler.PackageBuilder.addPackageFromDrl(PackageBuilder.java:167) at org.jboss.seam.drools.RuleBase.compileRuleBase(RuleBase.java:58) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at org.jboss.seam.util.Reflections.invoke(Reflections.java:21) at org.jboss.seam.util.Reflections.invokeAndWrap(Reflections.java:125) at org.jboss.seam.Component.callComponentMethod(Component.java:2074) at org.jboss.seam.Component.callCreateMethod(Component.java:1997) at org.jboss.seam.Component.newInstance(Component.java:1968) at org.jboss.seam.Component.getInstance(Component.java:1865) at org.jboss.seam.Component.getInstance(Component.java:1832) at org.jboss.seam.Namespace.getComponentInstance(Namespace.java:55) at org.jboss.seam.Namespace.getComponentInstance(Namespace.java:50) at org.jboss.seam.el.SeamELResolver.resolveBase(SeamELResolver.java:166) at org.jboss.seam.el.SeamELResolver.getValue(SeamELResolver.java:53) at javax.el.CompositeELResolver.getValue(CompositeELResolver.java:53) at com.sun.faces.el.FacesCompositeELResolver.getValue(FacesCompositeELResolver.java:64) at org.jboss.el.parser.AstIdentifier.getValue(AstIdentifier.java:44) at org.jboss.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:186) at org.jboss.seam.core.Expressions$1.getValue(Expressions.java:112) at org.jboss.seam.drools.ManagedWorkingMemory.getRuleBaseFromValueBinding(ManagedWorkingMemory.java:78) at org.jboss.seam.drools.ManagedWorkingMemory.getStatefulSession(ManagedWorkingMemory.java:67) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at org.jboss.seam.util.Reflections.invoke(Reflections.java:21) at org.jboss.seam.util.Reflections.invokeAndWrap(Reflections.java:125) at org.jboss.seam.Component.callComponentMethod(Component.java:2074) at org.jboss.seam.Component.unwrap(Component.java:2100) at org.jboss.seam.Component.getInstance(Component.java:1879) at org.jboss.seam.Component.getInstance(Component.java:1832) at org.jboss.seam.Component.getInstanceInAllNamespaces(Component.java:2174) at org.jboss.seam.Component.getValueToInject(Component.java:2126) at org.jboss.seam.Component.injectAttributes(Component.java:1590) at org.jboss.seam.Component.inject(Component.java:1408) at org.jboss.seam.core.BijectionInterceptor.aroundInvoke(BijectionInterceptor.java:45) at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) at org.jboss.seam.core.MethodContextInterceptor.aroundInvoke(MethodContextInterceptor.java:42) at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:106) at org.jboss.seam.intercept.JavaBeanInterceptor.interceptInvocation(JavaBeanInterceptor.java:155) at org.jboss.seam.intercept.JavaBeanInterceptor.invoke(JavaBeanInterceptor.java:91) at org.ebsinc.ia.action.AgentAction_$$_javassist_2.getClientSearchKey2(AgentAction_$$_javassist_2.java) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at javax.el.BeanELResolver.getValue(BeanELResolver.java:62) at javax.el.CompositeELResolver.getValue(CompositeELResolver.java:53) at com.sun.faces.el.FacesCompositeELResolver.getValue(FacesCompositeELResolver.java:64) at org.jboss.el.parser.AstPropertySuffix.getValue(AstPropertySuffix.java:53) at org.jboss.el.parser.AstValue.getValue(AstValue.java:67) at org.jboss.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:186) at com.sun.facelets.el.TagValueExpression.getValue(TagValueExpression.java:71) ... 89 more Caused by: org.mvel.UnresolveablePropertyException: unable to resolve token: declr.identifier at org.mvel.ASTNode.getReducedValue(ASTNode.java:324) at org.mvel.ast.PropertyASTNode.getReducedValue(PropertyASTNode.java:32) at org.mvel.MVELInterpretedRuntime.parseAndExecuteInterpreted(MVELInterpretedRuntime.java:110) at org.mvel.MVELInterpretedRuntime.parse(MVELInterpretedRuntime.java:58) at org.mvel.TemplateInterpreter.execute(TemplateInterpreter.java:403)