This port will be removed on 2020-12-31 if not fixed
Thanks for reporting this, Steve.
1.2.0 was from 2014.
Fixed by updating the port to the latest revision.
A commit references this bug:
Date: Thu Sep 24 16:37:25 UTC 2020
New revision: 549929
audio/lvtk: Update 1.2.0 -> 2.0.0rc1-14
Reported by: swills