title: Error in reading files in R
body: <p>I'm a newcomer in the R community. Coding my first programs I've faced with a silly problem! When trying to read an RDS file with the following code:</p>
  
  <pre><code>tweets &lt;- readRDS("RDataMining-Tweets-20160212.rds")
  </code></pre>
  
  <p>the following error will arise.</p>
  
  <pre><code>Error in gzfile(file, "rb") : cannot open the connection
  In addition: Warning message:
  In gzfile(file, "rb") :
    cannot open compressed file 'RDataMining-Tweets-20160212.rds', probable reason 'No such file or directory'
  </code></pre>
  
  <p>What's the problem here?</p>