Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in C:\xampp7\htdocs\spednfe_2023-02-27\vendor\tecnickcom\tc-lib-color\test\WebTest.php:31 Stack trace: #0 {main} thrown in C:\xampp7\htdocs\spednfe_2023-02-27\vendor\tecnickcom\tc-lib-color\test\WebTest.php on line 31