I started with a clean raspian Stretsh (Debian 9) in a Pi3B+. I installed the dvswitch-repo and an update. While installing quantar I get errors associated with DMR ID file:
Setting up mmdvm-bridge (1.5-20200427-23) ...
Error, DMR ID file does not seem to be valid
dpkg: error processing package mmdvm-bridge (--configure):
subprocess installed post-installation script returned error exit status 251
Setting up p25gateway (1.1-20180424-9) ...
Created symlink /etc/systemd/system/multi-user.target.wants/p25gateway.service -> /lib/systemd/system/p25gateway.service.
Setting up quantar (1.01-20180420-2) ...
Errors were encountered while processing:
E: Sub-process /usr/bin/dpkg returned an error code (1)
Tom / K5TRA