We get error from pkgdb utility, after upgrading portupgrade from version 188.8.131.52,2 to 184.108.40.206,2
undefined method `with_pkgng?' for main:Object
We havn't switch to pkgng and don't plan to do it.
This is not actually forcing you to use pkgng.
It is now fixed with 220.127.116.11.
Fixed in 18.104.22.168.