java.lang.LinkageError这是个什么异常？

[xxisxx]

我的程序报了个LinkageError的错误
java.lang.LinkageError: loader constraints violated when linking com/borland/dx/dataset/Variant class

我查了查API,写的是
Subclasses of LinkageError indicate that a class has some dependency on another class; however, the latter class has incompatibly changed after the compilation of the former class.

但是不是很明白，谁能给我讲讲，怎么才会出这个问题……
谢谢了

[xxisxx]

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