“У косатки пакета нет кандидата установки”

gnome-orca имя пакета.

$ dpkg -l '*orca*'
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Cfg-files/Unpacked/Failed-cfg/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name                Version             Description
+++-===================-===================-===========================
un  gnome-orca          <none>              (no description available)
un  gnome-orca-common   <none>              (no description available)