rMaps Problems loading in R

[ccima]

I have problems loading "rMaps" package in R. I read that I have to install this package in github but I've never used it. Anybody could help me?
Thanks,
Carmen

[aschmu]

Hi ccima, try this (see package readme) :
library(devtools)
install_github('ramnathv/rCharts@dev')
install_github('ramnathv/rMaps')

you may need to install devtools via install.packages("devtools").

[marineecology]

Dear Sir,
Why do i receive installation failed:

require(devtools)
install_github('ramnathv/rCharts@dev')
Downloading GitHub repo ramnathv/rCharts@dev
from URL https://api.github.com/repos/ramnathv/rCharts/zipball/dev
Installing rCharts
"C:/PROGRA1/R/R-341.0/bin/i386/R" --no-site-file --no-environ --no-save
--no-restore --quiet CMD INSTALL
"C:/Users/Administrator/AppData/Local/Temp/Rtmp2ttr7A/devtools1604369e683a/ramnathv-rCharts-8d3fe35"
--library="C:/Program Files/R/R-3.4.0/library" --install-tests

• installing source package 'rCharts' ...
  ** R
  ** inst
  ** preparing package for lazy loading
  Error in loadNamespace(name) : there is no package called 'base64enc'
  Error : unable to load R code in package 'rCharts'
  ERROR: lazy loading failed for package 'rCharts'
• removing 'C:/Program Files/R/R-3.4.0/library/rCharts'
• restoring previous 'C:/Program Files/R/R-3.4.0/library/rCharts'
  Installation failed: Command failed (1)

[csyjin6]

any solution for this? i got the same error