У меня есть установка, которая требует libgtkmm-2.4-1c2a в качестве зависимости, хотя apt-get не имеет ее. apt-get предложил libgtkmm-2.4-1v5 вместо этого, но это не работает.

Я использую Ubuntu 16. Как мне понизить рейтинг?

РЕДАКТИРОВАТЬ:

Ubuntu 16.04 LTS

Вывод apt-cache policy libgtkmm-2.4-1v5:

libgtkmm-2.4-1v5:
  Installed: 1:2.24.4-2
  Candidate: 1:2.24.4-2
  Version table:
 *** 1:2.24.4-2 500
        500 http://us.archive.ubuntu.com/ubuntu xenial/main amd64 Packages
        100 /var/lib/dpkg/status

вывод sudo apt-get check:

Reading package lists... Done
Building dependency tree       
Reading state information... Done
You might want to run 'apt-get -f install' to correct these.
The following packages have unmet dependencies:
 libflycapturegui2 : Depends: libgtkmm-2.4-1c2a but it is not installable
                     Depends: libglademm-2.4-1c2a but it is not installable
 libflycapturegui2-dev : Depends: libgtkmm-2.4-1c2a but it is not installable
                         Depends: libglademm-2.4-1c2a but it is not installable

, работающий apt-get -f install, сделал это:

Reading package lists... Done
Building dependency tree       
Reading state information... Done
Correcting dependencies... Done
The following packages will be REMOVED:
  libflycapturegui2 libflycapturegui2-dev
0 upgraded, 0 newly installed, 2 to remove and 146 not upgraded.
2 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Do you want to continue? [Y/n] y
(Reading database ... 217420 files and directories currently installed.)
Removing libflycapturegui2-dev (2.9.3.43) ...
Removing libflycapturegui2 (2.9.3.43) ...
Processing triggers for libc-bin (2.23-0ubuntu9) ...

, после чего sudo apt-get check дает:

Reading package lists... Done
Building dependency tree       
Reading state information... Done