Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in C:\xampp73\htdocs\MonitoresCIE_C\vendor\phpunit\php-token-stream\tests\Token\ClosureTest.php:13 Stack trace: #0 {main} thrown in C:\xampp73\htdocs\MonitoresCIE_C\vendor\phpunit\php-token-stream\tests\Token\ClosureTest.php on line 13