eclipse:The type java.lang.Object cannot be resolved. It is indirectly referenced from required

eclipse出现:The type java.lang.Object cannot be resolved. It is indirectly referenced from required 错误，

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是因为导入Elcipse的工程classpath中指定的JDK版本和你eclipse中JRE的版本不符，Project->build path->config build path, 然后把它用到JRE System library给remove,再add你的jre就行了