Re: SolrException: Error Instantiating queryParser, com.site.s.CustomQParserPlugin failed to instantiate org.apache.solr.search.QParserPlugin

Resolved by inclding solr on depency using maven -- Sent from: http://lucene.472066.n3.nabble.com/Solr-User-f472068.html

Re: SolrException: Error Instantiating queryParser, com.site.s.CustomQParserPlugin failed to instantiate org.apache.solr.search.QParserPlugin

Hi, Here is a blog post that shows how simple update processor is built/configured/deployed (you can ignore docValues part and why custom processor is done). You can follow that and see what you did wrong in your case: http://www.od-bits.com/2018/02/solr-docvalues-on-analysed-field.html

Re: SolrException: Error Instantiating queryParser, com.site.s.CustomQParserPlugin failed to instantiate org.apache.solr.search.QParserPlugin

When Solr first starts, it'll print the exact path it uses to load jar files, insure your jar is on one of those paths. Look for a line like: "Added ## libs to classloader from paths.". Adding "-v" to the start up will show you much more detailed information. You can also add the directive t