Create peer-group and listen range
set protocols bgp 64501 peer-group FOO set protocols bgp 64501 listen range 100.64.0.0/24 peer-group 'FOO'
Commit and it tells that range does not exist.
vyos@r2-roll# commit Peer-group "FOO" for listen range "100.64.0.0/24" does not exist! [[protocols bgp 64501]] failed Commit failed
The real fail reason:
% Specify remote-as or peer-group remote AS firs
So it expected option "remote-as" for peer-group
vyos@r2-roll# set protocols bgp 64501 peer-group FOO remote-as 65002 [edit] vyos@r2-roll# commit [edit]