title: "No such file or directory @ rb_sysopen" using OpenURI
body: <p>I've recently run into a problem using OpenURI. Every <code>open</code> method results in the following error:</p>
  
  <pre><code>"No such file or directory @ rb_sysopen".
  </code></pre>
  
  <p>My code looks simply like the following:</p>
  
  <pre><code>data = open("http://google.ca/")
  </code></pre>
  
  <p>I noticed the error shortly after adding <code>gem 'nokogiri'</code> to my <code>Gemfile</code> and running <code>bundle install</code>, though I have no indication of whether or not this caused the problem and have since removed the entry with no positive impact on the problem. Any help would be appreciated.</p>