Hi, I am newbie to drools. I am facing the below exception when I m trying to run my code through Command Prompt. I have set the all the jars in the xbootclasspath of my application , but still I am getting the same exception. I am able to run my application in eclipse , but the same when i run from Command Prompt give me this exception. Please help to get through the situation. My exception is : org.drools.RuntimeDroolsException: Unable to load dialect 'org.drools.rule.builder.dialect.java.JavaDialectConfiguration:java :org.drools.rule.builder.dialect.java.JavaDialectConfiguration' at org.drools.compiler.PackageBuilderConfiguration.addDialect(PackageBuilderConfiguration.java:274) at org.drools.compiler.PackageBuilderConfiguration.buildDialectConfigurationMap(PackageBuilderConfiguration.java:259) at org.drools.compiler.PackageBuilderConfiguration.init(PackageBuilderConfiguration.java:176) at org.drools.compiler.PackageBuilderConfiguration.<init>(PackageBuilderConfiguration.java:153) at org.drools.compiler.PackageBuilder.<init>(PackageBuilder.java:242) . . . Caused by: java.lang.NullPointerException at org.drools.rule.builder.dialect.java.JavaDialectConfiguration.setCompiler(JavaDialectConfiguration.java:92) at org.drools.rule.builder.dialect.java.JavaDialectConfiguration.init(JavaDialectConfiguration.java:55) at org.drools.compiler.PackageBuilderConfiguration.addDialect(PackageBuilderConfiguration.java:270) Thanks & Regards Pardeep Ruhil L&T Infotech Ltd Mumbai Ph: +919820283884 * Larsen & Toubro Infotech Ltd.*_ __www.Lntinfotech.com_ <http://www.lntinfotech.com/> This Document is classified as: L&T Infotech Proprietary L&T Infotech Confidential L&T Infotech Internal Use Only L&T Infotech General Business This Email may contain confidential or privileged information for the intended recipient (s) If you are not the intended recipient, please do not use or disseminate the information, notify the sender and delete it from your system. ______________________________________________________________________ ------------------------------------------------------------------------ _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users