title: I am unable to install packages in R
body: <p>When I try to install any package in Rstudio I get the following error message:</p>
  
  <pre><code>Error in install.packages : path[1]="C:\Users\javad\Documents\.Rhistory\win-library\3.2": The system cannot find the path specified
  </code></pre>
  
  <p>How can I solve it?</p>