Hi, I am new to using Drools. I am trying to run hellow world from eclipse 3.3. I got the following error msg: org.drools.RuntimeDroolsException: Unable to load dialect 'org.drools.rule.builder.dialect.java.JavaDialectConfiguration:java' at org.drools.compiler.PackageBuilderConfiguration.addDialect(PackageBuilderConfiguration.java:152) at org.drools.compiler.PackageBuilderConfiguration.buildDialectConfigurationMap(PackageBuilderConfiguration.java:140) at org.drools.compiler.PackageBuilderConfiguration.init(PackageBuilderConfiguration.java:117) at org.drools.compiler.PackageBuilderConfiguration.<init>(PackageBuilderConfiguration.java:94) at org.drools.compiler.PackageBuilder.<init>(PackageBuilder.java:124) at org.drools.compiler.PackageBuilder.<init>(PackageBuilder.java:86) at com.sample.DroolsTest.readRule(DroolsTest.java:50) at com.sample.DroolsTest.main(DroolsTest.java:21) Caused by: java.lang.RuntimeException: The Eclipse JDT Core jar is not in the classpath at org.drools.rule.builder.dialect.java.JavaDialectConfiguration.setCompiler(JavaDialectConfiguration.java:93) at org.drools.rule.builder.dialect.java.JavaDialectConfiguration.init(JavaDialectConfiguration.java:54) at org.drools.compiler.PackageBuilderConfiguration.addDialect(PackageBuilderConfiguration.java:148) ... 7 more Any suggestions fixing this issue? Thanks, Suresh