I seem to be experiencing the same problem reported here:
However, I am running Elastic 7.6.0 with Kibana 7.6.0, and I get this when attempting to start Kibana:
log [17:44:15.568] [info][plugins-service] Plugin "case" is disabled. log [17:44:29.726] [fatal][root] Error: No unique release file found! at /mirror/jail/opt/incontrol/auditor/kibana/node_modules/getos/index.js:149:21 at FSReqWrap.oncomplete (fs.js:153:21) FATAL Error: No unique release file found!
I did not find a resolution in the above post, so I am asking for help to diagnose this issue. Both Elastic and Kibana were installed from the tar.gz files.