pfSense

When setting up config sync on a new box. If a config section is selected, in this example Virtual IPs, but nothing is defined in that section then it will generate an error:
"execption calling xmlrpc method restore_config_section impossible to encode value from type nulll no analogous type"

grep -Ril "restore_config_section" /etc/inc/
/etc/inc/xmlrpc_client.inc
/etc/inc/pfsense-utils.inc

If the config sync for that section is unselected no error is generated. This has only been tested with Virtual IPs on 2.4.

There should be an exception handler to overlook sections that are no yet defined rather than generating an error when saving config sync.