The type XXX cannot be resolved. It is indirectly referenced from required .class files错误

遇到The type XXX cannot be resolved. It is indirectly referenced from required .class files错误.....,查找的解决办法如下:
一: 错误提示： It is indirectly referenced from required .class file 错误的解决

原因：你正要使用的类调用了另一个类，而这个类又调用了其他类，这种关系可能会有好多层。而在这个调用的过程中，某个类所在的包的缺失就会造成以上那个错误。

解决方法：导入缺失的包

二:
The project was not built since its build path is incomplete. Cannot find the class file for java.lang.Object. Fix the build path then try building this project

The type java.lang.Object cannot be resolved. It is indirectly referenced from required .class files

出?以上?息的原因是因?槟阊b了多??版本的jre或jdk的??S。本??clipse在建立?０?r，????⒄漳愕?re路?剑????版本就?]?法了。
你只能手?咏??hellip;
1. ?入windowpreferencesjavaInstalled JREs
1)按Add
2)?入JRE Name, 例JDK1.5.0.03
3)JRE home directory, ??癜惭b的路?
4)按OK
2. ?入ProjectpropertiesJava Bulid Path
1)Add library
2)?JRE System Library後按Next
3)?workplace default JRE後按finish...

补充：Jsp教程,Java基础