创建核心命令：docker exec -it --user=solr my_solr bin/solr create_core -c tianzhu
报错如下：ERROR: Error CREATEing SolrCore 'tianzhu': Unable to create core [tianzhu] Caused by: Can't find resource 'lang/contractions_it.txt' in classpath or '/opt/solr/server/solr/tianzhu'
缺少文件这个lang/contractions_it.txt文件是什么东西 找不到