I just ran into this myself, it's because there is no jndi entry for solr.home. A little further down on the wiki for installing tomcat is the instruction to create a solr.xml file and place it in TOMCAT_HOME/conf/Catalina/localhost
you have to change the Environment entry to point to your solr.home; ie, where your indexes actually live. Hope that helps, Rick --- Yonik Seeley <[EMAIL PROTECTED]> wrote: > On 1/10/07, Cook, Jeryl <[EMAIL PROTECTED]> > wrote: > > I am sure this is a dumb mistake, but > > i followed the set up of SOLR/tomcat 5.5.20, but > i keep getting this > > error.. > > > > java.lang.NoClassDefFoundError: Could not > initialize class > > org.apache.solr.core.SolrCore > > Look for the first errors that appear in the tomcat > log files. > Hopefully at least one should provide an error > message that points to > the problem. > > -Yonik >