Error when importing ACF field group

[drewbaker]

Warning: call_user_func_array() expects parameter 1 to be a valid callback, function 'cp_purge_cache' not found or invalid function name in /wordpress/wp-includes/class-wp-hook.php on line 309

I suspect this is because the site did not have purge cache plugin installed.

[drewbaker]

Probably this upstream line that causes this: https://github.com/funkhaus/fuxt-backend/blob/0c90c7c074ec275a9a326af6d461d00f6a4018b0/functions/wp-functions.php#L246