after reinstallation of Freeradius on Ubuntu 20.04, cannot start service

[Gareth Tomlinson]

Removed / purged freeradius after discovering daloradius didn't do what I
needed, reinstalled and now cannot start the service.
The issue SEEMS to be a missing shared library:
 freeradius.service - FreeRADIUS multi-protocol policy server
     Loaded: loaded (/lib/systemd/system/freeradius.service; disabled;
vendor preset: enabled)
     Active: activating (auto-restart) (Result: exit-code) since Mon
2020-08-17 17:38:53 EDT; 15ms ago
       Docs: man:radiusd(8)
             man:radiusd.conf(5)
             http://wiki.freeradius.org/
             http://networkradius.com/doc/
    Process: 11756 ExecStartPre=/usr/sbin/freeradius $FREERADIUS_OPTIONS
-Cxm -lstdout (code=exited, status=127)
Processing triggers for systemd (245.4-4ubuntu3.2) ...
garetht at ecxbackup:/usr/lib$ sudo freeradius -v
freeradius: error while loading shared libraries: libfreeradius-server.so:
cannot open shared object file: No such file or directory
garetht at ecxbackup:/usr/lib$ locate freeradius-server.so
/usr/lib/freeradius/libfreeradius-server.so


 freeradius -CX
freeradius: error while loading shared libraries: libfreeradius-server.so:
cannot open shared object file: No such file or directory