It sounds a bit like you are just exploring Solr for the first time. To use the Data Import Handler, you need to create an XML file that configures it, data-config.xml by default.
But before we go into details, what are you trying to accomplish with Solr? -----Original Message----- From: Jean-Jacques MONOT [mailto:jj_mo...@yahoo.fr] Sent: Monday, February 01, 2016 2:31 PM To: solr-user@lucene.apache.org Subject: Potential SPAM:sorry, no dataimport-handler defined! Hello I am using SOLR 5.4.1 and the graphical admin UI. I successfully created multiples cores and indexed various documents, using in line commands : (create -c) and (post.jar) on W10. But in the GUI, when I click on "Dataimport", I get the following message : "sorry, no dataimport-handler defined!" I get the same message even on 5.3.1 or for different cores. What is wrong ? JJM --- L'absence de virus dans ce courrier électronique a été vérifiée par le logiciel antivirus Avast. https://www.avast.com/antivirus