Laravel 5.6 Upgrade caused Logging to break : <p>Heey!</p>

<p>So I've recently been given the task to take a Laravel 5.2 up to 5.6. It seemed to be fine...until I tried to do a <code>\Log::info()</code>. Every time I run that, I get a big error, but at the end, it still prints to the log. I saw the 5.6 documentation on creating the <code>config/logger.php</code>. I took a fresh copy of it from github. The only thing I did after that was set an env variable for the <code>LOG_CHANNEL</code> to be single. Here's the error I get: </p>

<blockquote>
  <p>[2018-03-02 08:28:59] laravel.EMERGENCY: Unable to create configured logger. Using emergency logger. {"exception":"[object] (InvalidArgumentException(code: 0): Log [] is not defined. at I:\xampp\htdocs\mtm\vendor\laravel\framework\src\Illuminate\Log\LogManager.php:181)
  [ ....</p>
</blockquote>

<p>I did a file comparison between Laravel 5.2 and 5.6. I'm not seeing anything that jumps out that would break the Logging functionality. </p>

<p>Has anyone run into this with a Laravel upgrade?</p>
