title: dplyr compilation issue, Rcpp.h: no such file or directory
body: <p>Attempting to compile <code>dplyr</code> in Ubuntu (<code>r-base</code> and <code>r-base-dev</code> are up to date):</p>
  
  <pre><code>R -e 'install.packages("dplyr", repos="http://cran.rstudio.com/")'
  </code></pre>
  
  <p>Compilation gives this error:</p>
  
  <blockquote>
    <p><code>RcppExports.cpp: ..fatal error: Rcpp.h: no such file or directory</code></p>
  </blockquote>
  
  <p>I tried uninstalling and re-installing Rcpp:</p>
  
  <pre><code>sudo apt-get remove r-cran-rcpp
  sudo apt-get install r-cran-rcpp
  </code></pre>
  
  <p>I tried to compile again but got same error.</p>