Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestSuite" not found in I:\www\pvcDi\vendor\squizlabs\php_codesniffer\tests\TestSuite.php:15 Stack trace: #0 I:\www\pvcDi\vendor\squizlabs\php_codesniffer\tests\AllTests.php(29): include_once() #1 {main} thrown in I:\www\pvcDi\vendor\squizlabs\php_codesniffer\tests\TestSuite.php on line 15