title: Can't access User Library in R - "Non-Zero Exit Status" warning
body: <p>When I tried to install packages on my work laptop, I got an error. I've been told that I have full privileges with the laptop, so there should be no blocks. </p>
  
  <p>I think it might be something to do with the file path to the library where installed packages go? I'm using both the latest version of R and R Studio, 64-bit, and using Canada's U of T CRAN mirror site. </p>
  
  <p>Here is what comes up when I try to install <code>plyr</code> with </p>
  
  <pre><code>install.packages("plyr")
  </code></pre>
  
  <blockquote>
    <p>also installing the dependency ‘Rcpp’
    Packages which are only available in source form, and may need compilation
      of C/C++/Fortran: ‘Rcpp’ ‘plyr’</p>
  </blockquote>
  
  <p>And when I try to install <code>ggplot2</code>, here is the long error message:</p>
  
  <blockquote>
    <p>ERROR: dependency 'stringi' is not available for package 'stringr'
    * removing 'C:/RPackages/R-3.2.3/library/stringr'
    Warning in install.packages :
      running command '"C:/RPACKA~1/R-32~1.3/bin/x64/R" CMD INSTALL -l "C:\RPackages\R-3.2.3\library" C:\Users\MICHAE~1.COL\AppData\Local\Temp\RtmpGs24zA/downloaded_packages/stringr_1.0.0.tar.gz' had status 1
    Warning in install.packages :
      installation of package ‘stringr’ had non-zero exit status
    ERROR: dependency 'colorspace' is not available for package 'munsell'
    * removing 'C:/RPackages/R-3.2.3/library/munsell'
    Warning in install.packages :
      running command '"C:/RPACKA~1/R-32~1.3/bin/x64/R" CMD INSTALL -l "C:\RPackages\R-3.2.3\library" C:\Users\MICHAE~1.COL\AppData\Local\Temp\RtmpGs24zA/downloaded_packages/munsell_0.4.3.tar.gz' had status 1
    Warning in install.packages :
      installation of package ‘munsell’ had non-zero exit status
    ERROR: dependencies 'digest', 'plyr', 'reshape2', 'scales' are not available for package 'ggplot2'
    * removing 'C:/RPackages/R-3.2.3/library/ggplot2'
    Warning in install.packages :
      running command '"C:/RPACKA~1/R-32~1.3/bin/x64/R" CMD INSTALL -l "C:\RPackages\R-3.2.3\library" C:\Users\MICHAE~1.COL\AppData\Local\Temp\RtmpGs24zA/downloaded_packages/ggplot2_2.0.0.tar.gz' had status 1
    Warning in install.packages :
      installation of package ‘ggplot2’ had non-zero exit status
    The downloaded source packages are in
        ‘C:\Users\michael.colangelo\AppData\Local\Temp\RtmpGs24zA\downloaded_packages’</p>
  </blockquote>
  
  <p>What does "non-zero exit status" mean? Is it trying to find a library for the installation?> The appData file mentioned in the code doesn't seem to exist or I cannot access it. How do I change it to another local folder?</p>