After adding GELF logging according to this how to https://medium.com/@vaidaslungis/setup-graylog-in-laravel-5-6-logging-d2276bcb9cfa
the php artisan config:cache command isn't working anymore.
The error message is:
In ConfigCacheCommand.php line 68:
Your configuration files are not serializable.
In config.php line 382:
Call to undefined method Gelf\Publisher::__set_state()
Is it still possible to cache the config? If so, what needs to be changed?
