After commit https://github.com/vyos/vyos-1x/commit/bbea850ea5f8ff0402cd276ab63963ece7e0c763 when upgrading from 1.2.5 to current rolling release the following error is thrown on bootup:
Traceback (most recent call last): File "/opt/vyatta/etc/config-migrate/migrate/dns-forwarding/1-to-2", line 64, in <module> raise ValueError(f'Invalid interface name {intf}') ValueError: Invalid interface name eth0 vif 202