我想为我的 solr 文档自动生成 id，我完全按照 Solr Cook Book 中的方式进行操作，但它不起作用。我得到了这个异常（在 Jetty 上运行默认）。
ERROR org.apache.solr.core.CoreContainer – Unable to create core: collection1
org.apache.solr.common.SolrException: QueryElevationComponent requires the schema to have a uniqueKeyField.
at org.apache.solr.core.SolrCore.<init>(SolrCore.java:821)
at org.apache.solr.core.SolrCore.<init>(SolrCore.java:618)
at org.apache.solr.core.CoreContainer.createFromLocal(CoreConta
我错过了什么？
我的 schema.xml：
<?xml version="1.0" encoding="UTF-8" ?>
<schema name="transcripts" version="1.5">
<fields>
<field name="id" type="uuid" indexed="true" stored="true" default="NEW" required="true"/>
<field name="stime" type="long" indexed="true" stored="true" required="true" multiValued="false"/>
<field name="etime" type="long" indexed="true" stored="true" required="true" multiValued="false"/>
<field name="speakerid" type="string" indexed="true" stored="true" required="false" multiValued="false"/>
<field name="speakergender" type="string" indexed="true" stored="true" required="false" multiValued="false"/>
<field name="videoid" type="string" indexed="true" stored="true" multiValued="false" required="true"/>
<field name="transcriptLIUM" type="text_en_splitting" indexed="true" stored="true" multiValued="false" required="false"/>
<field name="transcriptLIMSI" type="text_en_splitting" indexed="true" stored="true" multiValued="false" required="true"/>
<field name="_version_" type="long" indexed="true" stored="true"/>
</fields>
<types>
<fieldType name="uuid" class="solr.UUIDField" indexed="true" />
<fieldType name="long" class="solr.TrieLongField" precisionStep="0" positionIncrementGap="0"/>
<fieldType name="string" class="solr.StrField" sortMissingLast="true" />
<!-- A text field with defaults appropriate for English, plus
aggressive word-splitting and autophrase features enabled.
This field is just like text_en, except it adds
WordDelimiterFilter to enable splitting and matching of
words on case-change, alpha numeric boundaries, and
non-alphanumeric chars. This means certain compound word
cases will work, for example query "wi fi" will match
document "WiFi" or "wi-fi".
-->
<fieldType name="text_en_splitting" class="solr.TextField" positionIncrementGap="100" autoGeneratePhraseQueries="true">
<analyzer type="index">
<tokenizer class="solr.WhitespaceTokenizerFactory"/>
<!-- TODO zde nahradi nas THD tokenizer - use synonyms at query time
<filter class="solr.SynonymFilterFactory" synonyms="index_synonyms.txt" ignoreCase="true" expand="false"/>
-->
<!-- Case insensitive stop word removal.
add enablePositionIncrements=true in both the index and query
analyzers to leave a 'gap' for more accurate phrase queries.
-->
<filter class="solr.StopFilterFactory"
ignoreCase="true"
words="lang/stopwords_en.txt"
enablePositionIncrements="true"
/>
<filter class="solr.WordDelimiterFilterFactory" generateWordParts="1" generateNumberParts="1" catenateWords="1" catenateNumbers="1" catenateAll="0" splitOnCaseChange="1"/>
<filter class="solr.LowerCaseFilterFactory"/>
<filter class="solr.KeywordMarkerFilterFactory" protected="protwords.txt"/>
<filter class="solr.PorterStemFilterFactory"/>
</analyzer>
<analyzer type="query">
<tokenizer class="solr.WhitespaceTokenizerFactory"/>
<filter class="solr.SynonymFilterFactory" synonyms="synonyms.txt" ignoreCase="true" expand="true"/>
<filter class="solr.StopFilterFactory"
ignoreCase="true"
words="lang/stopwords_en.txt"
enablePositionIncrements="true"
/>
<filter class="solr.WordDelimiterFilterFactory" generateWordParts="1" generateNumberParts="1" catenateWords="0" catenateNumbers="0" catenateAll="0" splitOnCaseChange="1"/>
<filter class="solr.LowerCaseFilterFactory"/>
<filter class="solr.KeywordMarkerFilterFactory" protected="protwords.txt"/>
<filter class="solr.PorterStemFilterFactory"/>
</analyzer>
</fieldType>
<!-- Less flexible matching, but less false matches. Probably not ideal for product names,
but may be good for SKUs. Can insert dashes in the wrong place and still match. -->
<fieldType name="text_en_splitting_tight" class="solr.TextField" positionIncrementGap="100" autoGeneratePhraseQueries="true">
<analyzer>
<tokenizer class="solr.WhitespaceTokenizerFactory"/>
<filter class="solr.SynonymFilterFactory" synonyms="synonyms.txt" ignoreCase="true" expand="false"/>
<filter class="solr.StopFilterFactory" ignoreCase="true" words="lang/stopwords_en.txt"/>
<filter class="solr.WordDelimiterFilterFactory" generateWordParts="0" generateNumberParts="0" catenateWords="1" catenateNumbers="1" catenateAll="0"/>
<filter class="solr.LowerCaseFilterFactory"/>
<filter class="solr.KeywordMarkerFilterFactory" protected="protwords.txt"/>
<filter class="solr.EnglishMinimalStemFilterFactory"/>
<!-- this filter can remove any duplicate tokens that appear at the same position - sometimes
possible with WordDelimiterFilter in conjuncton with stemming. -->
<filter class="solr.RemoveDuplicatesTokenFilterFactory"/>
</analyzer>
</fieldType>
</types>
</schema>