In [11]:

    

install.packages("devtools")


    

    




Installing package into '/usr/local/lib/R/site-library'
(as 'lib' is unspecified)






    




Error in contrib.url(repos, type): trying to use CRAN without setting a mirror

In [10]:

    

install.packages("dplyr")


    

    




Installing package into '/usr/local/lib/R/site-library'
(as 'lib' is unspecified)






    




Error in contrib.url(repos, type): trying to use CRAN without setting a mirror

In [9]:

    

devtools::install_github("wesm/feather/R")


    

    




Error in loadNamespace(name): there is no package called 'devtools'

In [8]:

    

library(feather)
library(dplyr)


    

    




Error in library(feather): there is no package called 'feather'






    




Error in library(dplyr): there is no package called 'dplyr'

In [ ]: