: <lib dir="../../dist/" regex="apache-solr-dataimporthandler-\d.*\.jar" /> : : And I have all the dist jar files in dist folder. I restarted the tomcat, : why I am still getting this error: : : java.lang.ClassNotFoundException: : org.apache.solr.handler.dataimport.DataImportHandler
is the path "../../dist/" correct relative to the instanceDir for your solr core? you should see log messages when the SolrCore is loaded listing every plugin jar being added, what do those look like? For example, when running the DIH example from 4.0... hossman@frisbee:~/lucene/branch_4_0/solr/example$ java -Dsolr.solr.home=example-DIH/solr/ -jar start.jar ... Oct 17, 2012 6:05:42 PM org.apache.solr.core.CoreContainer create INFO: Creating SolrCore 'db' using instanceDir: example-DIH/solr/db Oct 17, 2012 6:05:42 PM org.apache.solr.core.SolrResourceLoader <init> INFO: new SolrResourceLoader for directory: 'example-DIH/solr/db/' Oct 17, 2012 6:05:42 PM org.apache.solr.core.SolrResourceLoader replaceClassLoader INFO: Adding 'file:/home/hossman/lucene/branch_4_0/solr/example/example-DIH/solr/db/lib/.svn/' to classloader Oct 17, 2012 6:05:42 PM org.apache.solr.core.SolrResourceLoader replaceClassLoader INFO: Adding 'file:/home/hossman/lucene/branch_4_0/solr/example/example-DIH/solr/db/lib/hsqldb-1.8.0.10.jar' to classloader Oct 17, 2012 6:05:42 PM org.apache.solr.core.SolrConfig initLibs INFO: Adding specified lib dirs to ClassLoader Oct 17, 2012 6:05:42 PM org.apache.solr.core.SolrResourceLoader replaceClassLoader INFO: Adding 'file:/home/hossman/lucene/branch_4_0/solr/dist/apache-solr-dataimporthandler-extras-4.0-SNAPSHOT.jar' to classloader Oct 17, 2012 6:05:42 PM org.apache.solr.core.SolrResourceLoader replaceClassLoader INFO: Adding 'file:/home/hossman/lucene/branch_4_0/solr/dist/apache-solr-dataimporthandler-4.0-SNAPSHOT.jar' to classloader Oct 17, 2012 6:05:42 PM org.apache.solr.core.SolrConfig <init> INFO: Using Lucene MatchVersion: LUCENE_40 -Hoss
