String.init(contentsOfFile:) replacement for Linux?
<p>After deploying my Swift 3 app to Heroku, it crashed with the following error:</p>

<pre><code>fatal error: init(contentsOfFile:usedEncoding:) is not yet implemented: file Foundation/NSString.swift, line 1255
</code></pre>

<p>What can I use instead of <code>String.init(contentsOfFile:)</code> on Ubuntu?</p>