Например для R вот такую кучу ошибок выдал, хотя еще вчера все прекрасно устанавливались. Нет, я ничего не перепутал, инструкция та же, репозитории добавены
ubuntu@ubuntu:~/Downloads$ sudo apt-get install r-base 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: megasync : Depends: libc-ares2 (>= 1.7.4) but it is not going to be installed Depends: libcrypto++9v5 but it is not installable Depends: libmediainfo0v5 (>= 0.7.56) but it is not installable Depends: libqt4-svg (>= 4:4.5.3) but it is not going to be installed Depends: libzen0v5 (>= 0.4.31-2~) but it is not installable r-base : Depends: r-base-core (>= 3.5.3-1xenial) but it is not going to be installed Depends: r-recommended (= 3.5.3-1xenial) but it is not going to be installed Recommends: r-base-html but it is not going to be installed Recommends: r-doc-html but it is not going to be installed E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).
С -f тоже не ставит