Instalação de Pacotes em "R" - CentOs/Fedora

Caso esteja recebendo a seguinte mensagem de erro na instalação de pacotes no "R":

--- Please select a CRAN mirror for use in this session ---
Error in download.file(url, destfile = f, quiet = TRUE) : 
  unsupported URL scheme
Warning: unable to access index for repository https://cran.rstudio.com/src/contrib:

  unsupported URL scheme

Utilizar a sintaxe:

install.packages(<package_name>, dependencies=TRUE, repos='http://cran.rstudio.com/')

Exemplo:

install.packages('ggplot2', dependencies=TRUE, repos='http://cran.rstudio.com/')