Fatal error: Uncaught Error: Class "Orchestra\Testbench\TestCase" not found in C:\xampp\htdocs\demo\vendor\arielmejiadev\larapex-charts\tests\TestCase.php:7 Stack trace: #0 {main} thrown in C:\xampp\htdocs\demo\vendor\arielmejiadev\larapex-charts\tests\TestCase.php on line 7