Fatal error: Uncaught Error: Trait "Illuminate\Testing\Fluent\Concerns\Has" not found in /home/guillaw/Avimmo/vendor/laravel/framework/src/Illuminate/Testing/Fluent/AssertableJson.php:14 Stack trace: #0 {main} thrown in /home/guillaw/Avimmo/vendor/laravel/framework/src/Illuminate/Testing/Fluent/AssertableJson.php on line 14