Kibana fails to start after upgrade

[kernelpanic (FreeBSD user)]

Hello all,

I've upgraded all our Elasticsearch cluster components from 6.2.4 to 6.3.2

The cluster itself seem fine but Kibana will not start; in the Kibana log
it shows the following:

{"type":"log","@timestamp":"2018-08-28T15:17:36Z","tags":["reporting","error"],"pid":76937,"message":"Failed
to install browser. See kibana logs for more details."}

When I enable verbose logging I don't get an error message, the last line
just shows the following:

{"type":"log","@timestamp":"2018-08-28T15:31:26Z","tags":["reporting","debug","exportTypes"],"pid":77142,"message":"Found
exportType at
/usr/local/www/kibana6/node_modules/x-pack/plugins/reporting/export_types/csv/server/index.js"}

I've tried removing and reinstalling Kibana and its dependencies but no joy.

Any help much appreciated.

[kernelpanic (FreeBSD user)]

I should've mentioned I'm usin Elastic Stack on FreeBSD, it appears we have to disable the XPACK features to get Kibana to start, adding the following to kibana.yml did the trick:

xpack.apm.enabled: false
xpack.grokdebugger.enabled: false
xpack.searchprofiler.enabled: false
xpack.graph.enabled: false
xpack.ml.enabled: false
xpack.monitoring.enabled: false
xpack.reporting.enabled: false
xpack.security.enabled: false