From 6b34157fd658a9bbc03f4bbac21a8d00d8e53bdc Mon Sep 17 00:00:00 2001
From: Hanish Singla <hksingla92@gmail.com>
Date: Thu, 21 Nov 2019 14:45:19 +0530
Subject: [PATCH] Fix: A tree builder without a root node is deprecated since
 Symfony 4.2 and will not be supported anymore in 5.0.

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

diff --git a/DependencyInjection/Configuration.php b/DependencyInjection/Configuration.php
index 564166a..324f3ec 100644
--- a/DependencyInjection/Configuration.php
+++ b/DependencyInjection/Configuration.php
@@ -15,8 +15,8 @@ class Configuration implements ConfigurationInterface
      */
     public function getConfigTreeBuilder()
     {
-        $treeBuilder = new TreeBuilder();
-        $root = $treeBuilder->root('happyr_linkedin');
+        $treeBuilder = new TreeBuilder('happyr_linkedin');
+        $root = $treeBuilder->getRootNode();
 
         $root->children()
             ->scalarNode('http_client')->defaultValue('httplug.client')->info('A service id for a Httplug adapter')->end()