Fatal error: Uncaught Error: Class "MLL\GraphiQL\Tests\TestCase" not found in /home/tgmart/public_html/api/vendor/mll-lab/laravel-graphiql/tests/DownloadAssetsCommandTest.php:7 Stack trace: #0 {main} thrown in /home/tgmart/public_html/api/vendor/mll-lab/laravel-graphiql/tests/DownloadAssetsCommandTest.php on line 7