Running into an issue beyond my experience level.
In Installed and started Solr 7.3. But, then I realized I need to use an older 6.x version (for Drupal) So, I installed Solr 6.6.3. But, it will not start. The message I get is: **Still not seeing Solr listening on 8983 after 180 seconds!* *tail: /Applications/solr-6.6.3/server/logs/solr.log: No such file or directory** I get the same same result, whether I use *bin/solr start* or *sudo*. The solr.log is definitely missing. But there is a Solr-8983-console.log. This shows the message below: **Java HotSpot(TM) 64-Bit Server VM warning: Option UseConcMarkSweepGC was deprecated in version 9.0 and will likely be removed in a future release.* *Unrecognized VM option 'UseParNewGC'* *Error: Could not create the Java Virtual Machine.* *Error: A fatal exception has occurred. Program will exit.** Java -version displays as 10.0.1. This is a work computer with security needs, and I believe I need to keep it as updated as possible: **java version "10.0.1" 2018-04-17* *Java(TM) SE Runtime Environment 18.3 (build 10.0.1+10)* *Java HotSpot(TM) 64-Bit Server VM 18.3 (build 10.0.1+10, mixed mode)** Also tried with Solr 6.6.3, 6.6.0 and 5.0.0 with same failure and log message. If relevant, I'm on a 2015 macbook pro, using high sierra 10.13.3
