I followed the 5.0 install docs: http://downloads.jboss.com/drools/docs/5.0.1.26597.FINAL/drools-introduct... And used the "Create a new Drools 5 runtime....", but I ran into an issue: 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) at org.drools.compiler.PackageBuilder.<init>(PackageBuilder.java:142) at org.drools.builder.impl.KnowledgeBuilderProviderImpl.newKnowledgeBuilder(KnowledgeBuilderProviderImpl.java:29) at org.drools.builder.KnowledgeBuilderFactory.newKnowledgeBuilder(KnowledgeBuilderFactory.java:29) at com.sample.DroolsTest.readKnowledgeBase(DroolsTest.java:39) at com.sample.DroolsTest.main(DroolsTest.java:23) 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:94) at org.drools.rule.builder.dialect.java.JavaDialectConfiguration.init(JavaDialectConfiguration.java:55) at org.drools.compiler.PackageBuilderConfiguration.addDialect(PackageBuilderConfiguration.java:270) ... 9 more It works fine when I downloaded the 5.0 binaries and just pointed it at this. Plz, let me know if there is a better place to report these issues. Also, I found a bunch of documentation nits that I'd like to eventually report. --Kurt