That might be due ElasticHQ not being completely ready for 5. If you go to debugger, you will see it attempts to call ?all=true instead of _all to retrieve nodes.You can fix a little but there are many other issues may raise for other reasons. See xbgmsharp's answers at:Example fix for mac users:sed -ie 's/nodes?all=true/nodes\/_all/g' js/all.min.jsYellow status is because there are no replicas, safe to ignore for development I suppose.