Our drl file snippet looks something like this : Snippet : <package name="com.bofa.strata.component.rules" xmlns="http://drools.org/drools-3.0" xmlns:java="http://drools.org/semantics/java" xmlns:xs="http://www.w3.org/2001/XMLSchema-instance" xs chemaLocation="http://drools.org/drools-3.0 drools-3.0.xsd http://drools.org/semantics/java java.xsd"> <import name="com.bofa.strata.component.rules.ProcessRuleHelper.ProcessRuleDTO" /> <import name="com.bofa.TS.AIM.IV.components.JobRequestInfo" /> <import name="com.bofa.strata.interfaces.IValueObject" /> <import name="com.bofa.strata.component.service.ServiceRequest" /> <import name="com.bofa.TS.AIM.IV.components.CheckItem" /> <import name="com.bofa.strata.presentation.accountrecord.AcctRcdItem" /> <import name="com.bofa.TS.AIM.IV.components.EstmtItem" /> <import name="java.util.List" /> <import name="java.lang.String" /> <import name="java.util.ArrayList" /> When we try to fire the rules we get the following exception. org.drools.rule.InvalidRulePackage: Function Compilation error Rule Compilation error The import com.bofa.TS cannot be resolved When we change the package from "com.bofa.strata.component.rules" to "com.bofa.TS.AIM.IV" ,it compiles fine. Queries : 1) How do we arrive at a safe package name? 2) On what basis is the error thrown ? -- View this message in context: http://www.nabble.com/Package-declaration-problem-tf3374964.html#a9392071 Sent from the drools - user mailing list archive at Nabble.com.