Fatal error: Uncaught Error: Class 'PHPUnit_Framework_TestCase' not found in E:\xampp\htdocs\api.blank_fe_delete\vendor\sebastian\comparator\tests\DoubleComparatorTest.php:17 Stack trace: #0 {main} thrown in E:\xampp\htdocs\api.blank_fe_delete\vendor\sebastian\comparator\tests\DoubleComparatorTest.php on line 17