title: Jupyter notebook: error installing R packages
body: <p>I'm using Ubuntu 16.04.</p>
  
  <p>I have R running on my Jupyter notebook and all the packages comes with "R essentials" work fine. </p>
  
  <p>However, when I try to install additional packages like "mice" or "bigmemory", the installation always fails. When it tries to do </p>
  
  <blockquote>
    <p>** testing if installed package can be loaded</p>
  </blockquote>
  
  <p>this is the error message that appears: </p>
  
  <blockquote>
    <p>Error in dyn.load(file, DLLpath = DLLpath, ...) : 
      unable to load shared object '/home/usr/anaconda3/lib/R/library/bigmemory/libs/bigmemory.so':
      /home/usr/anaconda3/lib/R/library/Rcpp/libs/../../../../libstdc++.so.6: version 'GLIBCXX_3.4.20' not found (required by /home/usr/anaconda3/lib/R/library/bigmemory/libs/bigmemory.so)</p>
  </blockquote>
  
  <p>I have tried <code>sudo apt-get install libstdc++6</code>
  and it says my libstdc++6 is installed and already is the newest version. I don't know why the R installer cannot find it..</p>