Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in C:\xampp\htdocs\ApiSigestWin\1.20.01.20.4\vendor\symfony\dependency-injection\Tests\LazyProxy\PhpDumper\NullDumperTest.php:23 Stack trace: #0 {main} thrown in C:\xampp\htdocs\ApiSigestWin\1.20.01.20.4\vendor\symfony\dependency-injection\Tests\LazyProxy\PhpDumper\NullDumperTest.php on line 23