Changes TreeBuilder with root() call to constructor passed root and getRootNode() call
use Symfony\Component\Config\Definition\Builder\TreeBuilder;
-$treeBuilder = new TreeBuilder();
-$rootNode = $treeBuilder->root('acme_root');
+$treeBuilder = new TreeBuilder('acme_root');
+$rootNode = $treeBuilder->getRootNode();
$rootNode->someCall();Configure your rector.php:
<?php
use Rector\Config\RectorConfig;
use Rector\Symfony\Symfony42\Rector\New_\RootNodeTreeBuilderRector;
return RectorConfig::configure()
->withRules([
RootNodeTreeBuilderRector::class,
]);