Sadly the Lucene demo is not all that great. I recommend you start with Solr rather than Lucene directly. Erik On Jan 26, 2008, at 9:30 AM, Eric Lease Morgan wrote: > (Arg! Classpaths!) > > Please tell me why Java throws the NoClassDefFoundError error when I > think I have set up my classpath correctly: > > $ pwd > /home/eric/lucene > $ ls -lh > total 720K > -rw-r--r-- 1 eric eric 650K 2008-01-26 08:30 lucene-core-2.3.0.jar > -rw-r--r-- 1 eric eric 52K 2008-01-26 08:30 lucene-demos-2.3.0.jar > $ export CLASSPATH=$PWD:. > $ echo $CLASSPATH > /home/eric/lucene:. > $ java org.apache.lucene.demo.IndexFiles > Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/ > lucene/demo/IndexFiles > > > Put another way, I have downloaded Lucene and I'm trying to do the > demo application. [1] You are suppose to put the .jar files in your > classpath and then run java org.apache.lucene.demo.IndexFiles. What > am I doing wrong? > > [1] http://lucene.apache.org/java/2_3_0/demo.html > > -- > Eric Lease Morgan