Monolog and Symfony logs
<p>Please, how to configure a custom path for Symfony logs using monolog?</p>

<p>My application logs is working fine, but I cant find the log for some errors, like this:</p>

<p><code>InvalidConfigurationException</code> in <code>VariableNode.php</code> (I can't see this log on screen but I can't find on log files)</p>

<p>Actually, I'm using this config:</p>

<pre><code>monolog:
    handlers:
        main:
            type:   stream
            path:   "%kernel.logs_dir%/app.log"
            level:  error
</code></pre>

<p>Thanks!</p>