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From DHIVYA M <>
Subject Exception in thread main - error
Date Mon, 26 Oct 2009 06:36:50 GMT
Am M.Dhivya, learning about apache lucene [Java].
I have installed JDK-6 update 4 and NetBeans-6.5.1
I downloaded the file and followed the steps given in docs to run the
The extracted lucene-1.9-final folder from the downloaded zip file is in D:\ 
and the lucene-core-1.9-final.jar , lucene-demos-1.9-final.jar and src is in
As said i have set the classpath in environment variable PATH in System properties as,
D:\lucene-1.9-final\lucene-core-1.9-final.jar; D:\lucene-1.9-final\lucene-demos-1.9-final.jar;
Then in the command prompt i gave the command,
D:\lucene-1.9-final>java org.apache.lucene.demo.IndexFiles d:\lucene-1.9-final\src
But got the following error:

Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/lucene/dem
Caused by: java.lang.ClassNotFoundException: org.apache.lucene.demo.IndexFiles
        at$ Source)
        at Method)
        at Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClassInternal(Unknown Source)

Am  a beginner just started to learn about lucene by my own interest after knowing about
its value. But now am scared as the things are totally blind for me. I went in through all
the forums but couldnt find the solution. I couldnt find out where am missing or my procedure
to run lucene demo is wrong. Kindly let me know a solution for which am struggling for past
one week.
Thanks in advance

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