roperty">
          <span class="name"><a href="dart-io/FileSystemException/osError.html">osError</a></span>
          <span class="signature">&#8594; <a href="dart-io/OSError-class.html">OSError</a></span>
        </dt>
        <dd>
          The underlying OS error. Can be <code>null</code> if the exception is not
raised due to an OS error.
          <div class="features">final</div>
</dd>
        <dt id="path" class="property">
          <span class="name"><a href="dart-io/FileSystemException/path.html">