R help - Jul 2014 - Problem in installing package "ggplot2"

Hi..

After  I upgraded R from 3.1 to 3.11, I stuck with problem in installing
'ggplot2' package....

The error message was;

Error in loadNamespace(j <- i[[1L]], c(lib.loc, .libPaths()), versionCheck
= vI[[j]]) :
  there is no package called ‘Rcpp’
Error: package or namespace load failed for ‘ggplot2’


I tried to find out resolution on the web.. and most people recommend
following;


install.packages("ggplot2",dependencies=T)

However, it didn't work, either.. it's so confusing.

I should use this package ASAP.. so, hope you guys give me a clear answer.

Best for your effort,

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