Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in C:\laragon\www\apidian-laravel-8-s3\vendor\fabpot\goutte\Goutte\Tests\ClientTest.php:18 Stack trace: #0 {main} thrown in C:\laragon\www\apidian-laravel-8-s3\vendor\fabpot\goutte\Goutte\Tests\ClientTest.php on line 18