Note that the issue is present in Solr 4.1 as well. I did find this post, which is not very encouraging: http://grokbase.com/t/lucene/solr-user/128sz03jdk/recursiveprefixtreestrategy-class-not-found
Might the name of the class be simply a typo that is easily rectified? How might one go about checking which classes are available? Thank you. -- Dotan Cohen http://gibberish.co.il http://what-is-what.com