I tried using I’m getting an error trying to use json-parser here:

parser p_json {

  json-parser(prefix(".json."));

};

But I get this error:

Error parsing parser expression, parser plugin json-parser not found in /usr/local/etc/syslog-ng.conf at line 38, column 3:

  json-parser(prefix(".json."));

I’m pretty sure I’m using syslog-ng 3.4.1.  Any idea on what I’m missing?