Fatal error: Uncaught InvalidArgumentException: The config file '/app/../config/production.json' appears to have an invalid format. in /vendor/igorw/config-service-provider/src/Igorw/Silex/ConfigServiceProvider.php:122 Stack trace: #0 /vendor/igorw/config-service-provider/src/Igorw/Silex/ConfigServiceProvider.php(45): Igorw\Silex\ConfigServiceProvider->readConfig() #1 /vendor/silex/silex/src/Silex/Application.php(160): Igorw\Silex\ConfigServiceProvider->register(Object(Silex\Application)) #2 /app/bootstrap.php(17): Silex\Application->register(Object(Igorw\Silex\ConfigServiceProvider)) #3 /web/index.php(18): require_once('/app/bootstrap....') #4 {main} thrown in /vendor/igorw/config-service-provider/src/Igorw/Silex/ConfigServiceProvider.php on line 122