I'm migrating from solr v4.3.1 to v8.5.2 and using this guide: https://lucene.apache.org/solr/guide/8_5/installing-solr.html I can't get data-import handler to work. I wanted to create a new core and then copy my old data-config fields into it to get me a quick start.
1. I ran command `solr create -c mytest` to create a new core. 2. I started solr: `C:\solr-8.5.2\bin\solr start -p 8983` 3. I look at http://localhost:8983/solr/#/, where I see my "mytest" core On disk I see a `managed-schema` file, which I think matches Solr 4.3.1's `schema.xml` I moved my data-config.xml to the new location C:\solr-8.5.2\server\solr\mytest\conf In my old solrconfig.xml I had this code referring to the above data-config: <requestHandler name="/dataimport" class="org.apache.solr.handler.dataimport.DataImportHandler"> <lst name="defaults"> <str name="config">data-config.xml</str> </lst> </requestHandler> This code was missing from the C:\solr-8.5.2\server\solr\mytest\conf\solrconfig.xml so I added it. Then when I try to run `http://localhost:8983/solr/mytest/dataimport?command=full-import` I get the error: > Error loading class 'org.apache.solr.handler.dataimport.DataImportHandler' So I copied files from C:\solr-8.5.2\dist to C:\solr-8.5.2\server\lib But then I get error > org.apache.solr.common.SolrException:org.apache.solr.common.SolrException: > Error Instantiating requestHandler, > org.apache.solr.handler.dataimport.DataImportHandler failed to instantiate > org.apache.solr.request.SolrRequestHandler What can I do?
