Mi código para tester.php

 require __DIR__.'/../vendor/autoload.php'; use Kreait\Firebase\Factory; $factory = (new Factory())->withServiceAccount('./../../landoflearners-firebase-adminsdk-v70d3-d7e08e3f89.json'); $auth = $factory->createAuth();

Mi estructura de directorios

error

error de inteligencia

 Undefined type 'Kreait\Firebase\Factory'

paquete.json

 { "require": { "kreait/firebase-php": "^5.20" } }