我是Drools的新手。我在Eclipse Neon中使用drools插件（6.4.0.Final）。我按照向导创建了带有一些示例文件的drools项目。完成这些步骤后，Eclipse在Sample.drl文件中的两个规则处突出显示了错误。这是错误之一：
Multiple markers at this line
com.sample.DroolsTest.Message cannot be resolved to a type
org.drools.core.util.bitmask.AllSetBitMask cannot be resolved to a type
Only a type can be imported. com.sample.DroolsTest.Message resolves to a package
org.kie.api.runtime.rule.FactHandle cannot be resolved to a type
KnowledgeHelper cannot be resolved to a type
Only a type can be imported. org.drools.core.spi.KnowledgeHelper resolves to a package
Message.GOODBYE cannot be resolved to a type
org.kie.api.runtime.rule.RuleContext cannot be resolved to a type
java.lang.Exception cannot be resolved to a type
当我运行DroolsTest.java时，出现以下错误：
java.lang.RuntimeException: Error while creating KieBase[Message [id=1, level=ERROR, path=Sample.drl, line=15, column=0
text=Rule Compilation error Only a type can be imported. com.sample.DroolsTest.Message resolves to a package
Only a type can be imported. org.drools.core.spi.KnowledgeHelper resolves to a package
KnowledgeHelper cannot be resolved to a type
org.kie.api.runtime.rule.FactHandle cannot be resolved to a type
java.lang.Exception cannot be resolved to a type
org.kie.api.runtime.rule.RuleContext cannot be resolved to a type], Message [id=2, level=ERROR, path=Sample.drl, line=5, column=0
text=Rule Compilation error Only a type can be imported. com.sample.DroolsTest.Message resolves to a package
Only a type can be imported. org.drools.core.spi.KnowledgeHelper resolves to a package
KnowledgeHelper cannot be resolved to a type
com.sample.DroolsTest.Message cannot be resolved to a type
org.kie.api.runtime.rule.FactHandle cannot be resolved to a type
org.kie.api.runtime.rule.FactHandle cannot be resolved to a type
java.lang.Exception cannot be resolved to a type
org.kie.api.runtime.rule.RuleContext cannot be resolved to a type
Message.GOODBYE cannot be resolved to a type
org.drools.core.util.bitmask.AllSetBitMask cannot be resolved to a type
com.sample.DroolsTest.Message cannot be resolved to a type]]
at org.drools.compiler.kie.builder.impl.KieContainerImpl.getKieBase(KieContainerImpl.java:450)
at org.drools.compiler.kie.builder.impl.KieContainerImpl.newKieSession(KieContainerImpl.java:604)
at org.drools.compiler.kie.builder.impl.KieContainerImpl.newKieSession(KieContainerImpl.java:575)
好像是库路径问题。任何帮助表示赞赏。
非常感谢你！
最佳答案
这是Neon或drools插件中的错误，基于以下站点已在drools插件（6.5.0.Final）中修复。
但由于我找不到6.5.0.Final版本，因此您可以通过将月食降级到火星来解决此问题