That's my schema XML:
<?xml version="1.0" encoding="UTF-8" ?>
<schema name="example" version="1.2">
<types>
<fieldType name="string" class="solr.StrField" sortMissingLast="true"
omitNorms="true"/>
<fieldType name="uuid" class="solr.UUIDField" indexed="true"
required="true" omitNorms="true"/>
<fieldType name="date" class="solr.TrieDateField" omitNorms="true"
precisionStep="0" positionIncrementGap="0"/>
<fieldType name="integer" class="solr.IntField" omitNorms="true"/>
<fieldType name="text" class="solr.TextField" positionIncrementGap="100">
<analyzer type="index">
<tokenizer class="solr.
WhitespaceTokenizerFactory"/>
<filter class="solr.LowerCaseFilterFactory" />
<filter class="solr.RemoveDuplicatesTokenFilterFactory" />
<filter class="solr.ISOLatin1AccentFilterFactory" />
</analyzer>
<analyzer type="query">
<tokenizer class="solr.WhitespaceTokenizerFactory"/>
<filter class="solr.SynonymFilterFactory" synonyms="synonyms.txt"
ignoreCase="true" expand="true"/>
<filter class="solr.LowerCaseFilterFactory" />
<filter class="solr.RemoveDuplicatesTokenFilterFactory" />
<filter class="solr.ISOLatin1AccentFilterFactory" />
</analyzer>
</fieldType>
</types>
<fields>
<field name="text" type="text" indexed="true" stored="false"
required="false" multiValued="false" omitNorms="false" />
<field name="icms_collection" type="text" indexed="true" stored="true"
required="true" multiValued="false" omitNorms="false" />
<field name="link" type="text" indexed="true" stored="true"
required="true" multiValued="false" omitNorms="false" />
<field name="title" type="text" indexed="true" stored="true"
required="true" multiValued="false" omitNorms="false" />
<field name="contributor" type="text" indexed="false" stored="false"
required="false" multiValued="false" omitNorms="false" />
....
</fields>
<uniqueKey>link</uniqueKey>
<defaultSearchField>text</defaultSearchField>
<solrQueryParser defaultOperator="AND"/>
<copyField source="title" dest="text"/>
<copyField source="contributor" dest="text"/>
...
</schema>
2010/10/28 Gora Mohanty <g...@mimirtech.com>
> On Thu, Oct 28, 2010 at 5:18 PM, Michael McCandless
> <luc...@mikemccandless.com> wrote:
> > Is it somehow possible that you are trying to sort by a multi-valued
> field?
> [...]
>
> Either that, or or your field gets processed into multiple tokens via the
> analyzer/tokenizer path in your schema. The reported error is a
> consequence of the fact that different documents might result in a
> different number of tokens.
>
> Please show us the part of schema.xml that defines the field type for
> the field "title".
>
> Regards,
> Gora
>
