Установка R на ВМ Ubuntu Xenial v16.04

Я испробовал все возможные способы установки R на этот сервер, и он не будет работать, все, что я получу, это ошибка ниже. Я понимаю, что это было опубликовано несколько раз, но ни один из утвержденных ответов не работает для меня. Я новичок в Ubuntu, поэтому, пожалуйста, помогите. Это очень расстраивает.

Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
r-base : Depends: r-base-core (>= 3.6.1-3bionic) but it is not going to be installed
      Depends: r-recommended (= 3.6.1-3bionic) but it is not going to be installed
      Recommends: r-base-html but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

Затем я попытался установить r-base-core вручную и получил

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

Some packages could not be installed. This may mean that you have requested an 
impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies.  
r-base-core : Depends: libc6 (>= 2.27) but 2.23-0ubuntu11 is to be 
               installed  
               Depends: libcurl4 (>= 7.28.0) but it is not installable  
               Depends: libicu60 (>= 60.1-1~) but it is not installable  
               Depends: libreadline7 (>= 6.0) but it is not installable  
               Recommends: r-base-dev but it is not going to be installed  
E: Unable to correct problems, you have held broken packages.

Затем попытался установить libcurl4 и получил

Package libcurl4 is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source.

Другие пакеты производят идентичные ошибки.

Опять же, пожалуйста, держите это в терминах непрофессионала, я не в себе.