Hello, the bird2 package from bird.network.cz for debian buster appears to be broken:
apt install bird2 Reading package lists... Done Building dependency tree Reading state information... Done The following NEW packages will be installed: bird2 0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded. Need to get 0 B/640 kB of archives. After this operation, 1,327 kB of additional disk space will be used. Selecting previously unselected package bird2. (Reading database ... 35407 files and directories currently installed.) Preparing to unpack .../bird2_2.0.6-1+0~20190916.13+debian10~1.gbp14a7a6_amd64.deb ... Unpacking bird2 (2.0.6-1+0~20190916.13+debian10~1.gbp14a7a6) ... Setting up bird2 (2.0.6-1+0~20190916.13+debian10~1.gbp14a7a6) ... Error: The new file /usr/share/doc/bird2/examples/bird.conf does not exist! dpkg: error processing package bird2 (--configure): installed bird2 package post-installation script subprocess returned error exit status 1 Processing triggers for man-db (2.8.5-2) ... Processing triggers for systemd (241-7~deb10u1) ... Errors were encountered while processing: bird2 E: Sub-process /usr/bin/dpkg returned an error code (1)