: Found it by myself. It's here : http://mirrors.ibiblio.org/maven2/org/apache/solr/solr-dataimporthandler/4.1.0/ : : Download and move the jar file to solr-webapp/webapp/WEB-INF/lib directory, : and the errors are all gone.
you don't need to move/copy/add any jars into hte solr webapp (where they will be blown away if/when you upgrade the webapp) All you need to do is load the jar as a plugin... https://wiki.apache.org/solr/SolrPlugins#How_to_Load_Plugins https://wiki.apache.org/solr/SolrConfigXml#lib -Hoss
