Problem when using custom extension

[martinsoenen]

Sometimes, when using a custom extension in Laravel Seeders, Faker says that the extension is already required.

  INFO  Caching framework bootstrap, configuration, and metadata.  


  config ........................................................ 43.61ms FAIL


   ErrorException 


  [XEFI FAKER] The 'custom-extension' extension is already registered


  at vendor/xefi/faker-php/src/Container/Traits/HasExtensions.php:71

     67▕      */

     68▕     protected function addExtension(Extension $extension): Container

     69▕     {

     70▕         if (isset(static::$extensions[$extension->getName()])) {

  ➜  71▕             trigger_error(sprintf('[XEFI FAKER] The \'%s\' extension is already registered', $extension->getName()), E_USER_WARNING);

     72▕         }

     73▕ 

     74▕         static::$extensions[$extension->getName()] = $extension;

     75▕


      +4 vendor frames 


  5   app/Providers/FakerServiceProvider.php:13

      Xefi\Faker\Faker::__call("resolveExtensions")

      +7 vendor frames 


  13  [internal]:0

      Illuminate\Foundation\Application::{closure:Illuminate\Foundation\Application::boot():1131}(Object(App\Providers\FakerServiceProvider), "App\Providers\FakerServiceProvider")

2025-12-10T15:25:02.752756432Z
 

In the FakerServiceProvider, if we add Container::starting(), the problem is solved.

namespace App\Providers;

use Illuminate\Support\ServiceProvider;
use Xefi\Faker\Faker;
use App\Faker\CustomExtension;

class FakerServiceProvider extends ServiceProvider
{
    public function boot(): void
    {
        faker()->resolveExtensions([CustomExtension::class]);
    }
}

We need to fix it or update the documentation.