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Added compatibility to Symfony 4.2+ #55

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9 changes: 7 additions & 2 deletions DependencyInjection/Configuration.php
Expand Up @@ -15,8 +15,13 @@ class Configuration implements ConfigurationInterface
*/
public function getConfigTreeBuilder()
{
$treeBuilder = new TreeBuilder();
$rootNode = $treeBuilder->root('white_october_tcpdf');
$treeBuilder = new TreeBuilder('white_october_tcpdf');

if (method_exists($treeBuilder, 'getRootNode')) {
$rootNode = $treeBuilder->getRootNode();
} else {
$rootNode = $treeBuilder->root('white_october_tcpdf');
}

$rootNode
->children()
Expand Down