Weka类无法初始化：InvocationTargetException [英] Weka class cannot be initialized: InvocationTargetException

问题描述

这是我第一次使用 weka ，如果我的问题似乎天真​​，我很抱歉。但是我真的坚持这个问题。

This is my first time using weka, I am sorry if my question seems naive. But I was really stuck by this problem.

我在我自己的 java 项目中使用 weka 在 eclipse 中。我已成功导入 weka.jar 附加的 wekasource.jar 。但是当我运行程序时，所有的 weka 类总是无法初始化（属性，Fastvector等）。所有异常是相同的：

I am using weka in my own java project in eclipse. I have successfully import weka.jar with attached wekasource.jar. But when I ran the program, all the weka class always failed to be initialized(attribute, Fastvector etc.). All the exceptions are the same:

InvocationTargetException

我检查显示的错误堆栈：java.lang.NoClassDefFoundError：weka / core / attribute

I check the error stack where showed: java.lang.NoClassDefFoundError: weka/core/attribute

附加信息：我试图在eclipse中创建一个新项目，并使用weka，它的工作原理。但是，在我自己现有的项目中仍然无法工作。

Additional Info: I tried to create a new project in eclipse ,and use weka, it works. But it still can not work in my own existing project.

有没有人有一些想法应该如何解决这个问题？

Does anyone have some ideas how should I solve this problem?

推荐答案

p>似乎我已经解决了这个奇怪的问题。解决方案很简单：

It seems I have solved this weird problem. The solution is simple:

右键单击项目，在java构建路径中，按顺序检查weka.jar和导出选项卡。

right click on the project, in the java build path, check weka.jar in order and export tab.

希望它可以帮助面临类似问题的后来的人们

Hope it can help the later people who face the similar problem

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