1) the error message you posted doesn't appear to have been copied verbatim (note: "...or dex...") ... please proivde the *exact* error you are getting -- ideally with full stack trace from the solr logs.
2) the <field/> you posted doens't match the field name in your error message 3)providing a <field/> w/o the <fieldType/> makes it hard to guess exactly what settings you are using (ie: is "docValuesFormat" specified on the fieldType?) 4) You said you are using result grouping, but you haven't actually shown us an example of what your request (with all params) looks like ... there's nohting in your email to even indicate grouping is involved. Details matter... https://wiki.apache.org/solr/UsingMailingLists (PS: assuming no obvious mistakes, it would be helpful to know if you can reproduce this problem using your same exact same configs & schema with a newly built 5.0 index, or if it *only* affects you when you upgrade and use an existing index from 4.7) : Date: Wed, 11 Mar 2015 11:02:43 -0700 : From: Shamik Bandopadhyay <sham...@gmail.com> : Reply-To: solr-user@lucene.apache.org : To: solr-user@lucene.apache.org : Subject: Solr 5.0 --> "IllegalStateException: unexpected docvalues type NONE" : on result grouping : : Hi, : : I've a field which is being used for result grouping. Here's the field : definition. : : <field name="ADDedup" type="string" indexed="true" stored="true" : multiValued="false" required="false" omitNorms="true" docValues="true"/> : : This started once I did a rolling update from 4.7 to 5.0. I started getting : the error on any group by query --> "SolrDispatchFilter null:java.lang. : IllegalStateException: unexpected docvalues type NONE for field 'ADSKDedup' : (expected=SORTED). Use UninvertingReader or dex with docvalues." : : Does this mean that I need to re-index documents to get over this error ? : : Regards, : Shamik : -Hoss http://www.lucidworks.com/