title: Error installing ggplot2
body: <p>I was trying to run a simple code on <strong>ggplot2</strong> and got the following error:</p>
  
  <pre><code>source("u1.txt")
  Error in library(ggplot2) : there is no package called ‘ggplot2’
  
  
  Error : package ‘foreign’ was built before R 3.0.0: please re-install it
  ERROR: lazy loading failed for package ‘maptools’
  * removing ‘/home/shivangi/R/i686-pc-linux-gnu-library/3.0/maptools’
  * installing *source* package ‘multcomp’ ...
  ** package ‘multcomp’ successfully unpacked and MD5 sums checked
  ** R
  ** data
  *** moving datasets to lazyload DB
  ** demo
  ** inst
  ** preparing package for lazy loading
  ** help
  *** installing help indices
  ** building package indices
  ** installing vignettes
  ** testing if installed package can be loaded
  * DONE (multcomp)
  ERROR: dependencies ‘plyr’, ‘reshape2’, ‘scales’ are not available for package ‘ggplot2’
  * removing ‘/home/shivangi/R/i686-pc-linux-gnu-library/3.0/ggplot2’
  
  The downloaded source packages are in
      ‘/tmp/RtmpOGWrr4/downloaded_packages’
  Warning messages:
  1: In install.packages("ggplot2", dep = TRUE) :
    installation of package ‘Rcpp’ had non-zero exit status
  2: In install.packages("ggplot2", dep = TRUE) :
    installation of package ‘plyr’ had non-zero exit status
  3: In install.packages("ggplot2", dep = TRUE) :
    installation of package ‘testthat’ had non-zero exit status
  4: In install.packages("ggplot2", dep = TRUE) :
    installation of package ‘reshape2’ had non-zero exit status
  5: In install.packages("ggplot2", dep = TRUE) :
    installation of package ‘scales’ had non-zero exit status
  6: In install.packages("ggplot2", dep = TRUE) :
    installation of package ‘Hmisc’ had non-zero exit status
  7: In install.packages("ggplot2", dep = TRUE) :
    installation of package ‘maptools’ had non-zero exit status
  8: In install.packages("ggplot2", dep = TRUE) :
    installation of package ‘ggplot2’ had non-zero exit status
  </code></pre>