Hybris 5.4.0 with SOLR 4.6

SolrServiceStandaloneImpl.java --> registerRemoteCore

CoreAdminHandler.java --> handleCreateAction

I am trying to integrate SOLR 4.6.1 with Hybris 5.4.0. Per the wiki, it is supported. The reason I am going to use SOLR 4.6 is so that my multiple cores should have their own CONF folder , where they can have their own schema.xml.

I have created a facetSearchConfig using impex, but when I am trying to run the full indexing using the Indexer Wizard, I am getting an error as "org.apache.solr.common.SolrException; org.apache.solr.common.SolrException: Error CREATEing SolrCore 'master_custom_Product': Could not create a new core in solr/.\as another core is already defined there".

Any ideas?