solr 配置业务字段报的错,求大神看看

Caused by: org.apache.solr.common.SolrException:
copyField source :'item_title' is not a glob and doesn't match any explicit field or dynamicField.. Schema file is D:\solrhome\collection1\schema.xml

http://blog.csdn.net/u010191034/article/details/53636775