Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in C:\xampp\htdocs\ApiSigestWin\1.0\vendor\symfony\property-access\Tests\PropertyAccessorBuilderTest.php:19 Stack trace: #0 {main} thrown in C:\xampp\htdocs\ApiSigestWin\1.0\vendor\symfony\property-access\Tests\PropertyAccessorBuilderTest.php on line 19