On 9/13/2019 10:30 AM, Tyrone Tse wrote:
When I check the solr.log file I am seeing the following error
2019-09-13 15:09:27.816 ERROR (main) [ ] o.a.s.s.SolrDispatchFilter Could
not start Solr. Check solr/home property and the logs
2019-09-13 15:09:27.838 ERROR (main) [ ] o.a.s.c.SolrCore
null:java.lang.NoClassDefFoundError:
org/apache/solr/security/HttpClientBuilderPlugin
That class should be in the solr-core jar. It was added in Solr 7.0,
didn't exist before that.
The error is particularly strange because the SolrCore class which
logged the message is itself located in the solr-core jar.
This problem can be caused by having multiple copies of the same jar,
even the same version, in different places on the classpath. Only add
extra jars to places like $SOLR_HOME/lib ... do not include jars for
Solr itself there.
Thanks,
Shawn
