title: "error reading from connection" on loading package on UNIX
body: <p>I am working on a linux cluster. I installed required R packages in a local library created in my home directory. Till yesterday everything was fine. but suddenly today I am not able to
  load those packages in my local library. the error is "error reading from the connection".
  That directory id present. All package are inside the directory and my path is also correct. I don't understand wht is the problem. please help me. this is how i am loading the package.</p>
  
  <pre><code>require("doMC",lib.loc = "~/Rlibrary")
  </code></pre>