From 45742f1a97291edd1401ecb58024488bbd793038 Mon Sep 17 00:00:00 2001
From: Robin Chalas <robin.chalas@gmail.com>
Date: Sat, 27 Oct 2018 21:37:34 +0200
Subject: [PATCH] Fix deprecation on symfony/config 4.2

---
 DependencyInjection/Configuration.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/DependencyInjection/Configuration.php b/DependencyInjection/Configuration.php
index 152c2ec1..c03828a6 100644
--- a/DependencyInjection/Configuration.php
+++ b/DependencyInjection/Configuration.php
@@ -305,8 +305,8 @@ class Configuration implements ConfigurationInterface
      */
     public function getConfigTreeBuilder()
     {
-        $treeBuilder = new TreeBuilder();
-        $rootNode = $treeBuilder->root('monolog');
+        $treeBuilder = new TreeBuilder('monolog');
+        $rootNode = method_exists(TreeBuilder::class, 'getRootNode') ? $treeBuilder->getRootNode() : $treeBuilder->root('monolog');
 
         $rootNode
             ->fixXmlConfig('channel')