小编use*_*377的帖子

我刚安装了Drools plug-inEclipse(版本3.5.2),我正在尝试运行插件附带的"Hello World"示例.

当我运行代码时,我得到runtime error以下堆栈跟踪:

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

以下是一些相关的Java代码:

public static final void main(String[] args) {
    try {
        // load up the knowledge base
        KnowledgeBase kbase = readKnowledgeBase();
    }
}

private …