Hi, Am new to Drools. Trying to use the Java version of Drools with rules in an xml file. The following is the code i use ".... InputStreamReader isr = new InputStreamReader(this.getClass().getResourceAsStream("/rules/test/" + rulesFile)); System.out.println("<<<<<<<<<<<< After getting InputStream Reader"+isr.toString()); rules = RuleBaseLoader.getInstance().loadFromReader(isr); .." Have included the following jar files in the classpath. 1) drools-compiler-4.0.0.jar 2) drools-core-4.0.0.jar 3) antlr-runtime-3.0.jar 4) core-3.2.3.v_686_R32x.jar 5) mvel14-1.2rc1.jar Have placed the rules in an xml file. The xml file is placed in the folder/package "rules/test". When the application tries to call the "loadFromReader" method, after getting the InputStreamReader, i get the following exception [8/10/07 13:16:24:173 GMT] 00000045 SystemErr R org.drools.compiler.PackageBuilder$MissingPackageNameException: Missing package name for rule package. Would appreciate if someone could guide me on this. I am using jdk1.4 with RAD6.0. -- View this message in context: http://www.nabble.com/Missing-package-name-for-rule-package-tf4248947.htm... Sent from the drools - dev mailing list archive at Nabble.com.