Edit file File name : ContainerLoader.php Content :<?php namespace Api\Core\Loader; use Api\Core\Config\ApiConfig; use Api\Core\Resolver\ConfigResolver; use Psr\Container\ContainerInterface; use Slim\Container; class ContainerLoader { /** * Load all service containers and add slim settings * * @return ContainerInterface */ public static function configure() { $slimSettings = ConfigResolver::loadFiles(ApiConfig::getSlimSettings()); // if we want to use this without DI, should create an instance for it $container = new Container($slimSettings); $services = ConfigResolver::loadFiles(ApiConfig::getContainers()); foreach ($services as $service => $closure) { $container[$service] = $closure; } return $container; } } Save