title: How do I specify an input for my Guardfile which points to a location in a parent directory?
body: <p>I have a Guardfile which contains the following line:</p>
  
  <pre><code>guard 'coffeescript', :input =&gt; 'js', :output =&gt; 'js/compiled'
  </code></pre>
  
  <p>This works fine, but when I put the guardfile in its own directory and then change the line to this:</p>
  
  <pre><code>guard 'coffeescript', :input =&gt; '../js', :output =&gt; '../js/compiled'
  </code></pre>
  
  <p>It fails to detect any changes in js. Why is it failing to find js? Is there something wrong with my path notation?</p>