ip6li on "[Plugin: Advanced Search by My Solr Server] Solr Schema does not Match"

I set up WP3.8 with Advanced Search by http://www.mysolrserver.com 2.0.5 which should use a Solr 4.6 installation. Each time WP sends updates to Solr following log entries occurs:

15:36:48 WARN XMLLoader Unknown attribute id in add:allowDups
15:36:48 WARN XMLLoader Unknown attribute id in add:overwritePending
15:36:48 WARN XMLLoader Unknown attribute id in add:overwriteCommitted
15:36:48 ERROR SolrCore org.apache.solr.common.SolrException: [doc=2] missing required field: url

http://wordpress.org/plugins/advanced-search-by-my-solr-server/