Fatal error: Uncaught Error: Class 'PHP_CodeSniffer\Tests\Standards\AbstractSniffUnitTest' not found in C:\xampp\htdocs\wasteman\scssphp\vendor\squizlabs\php_codesniffer\src\Standards\Squiz\Tests\Functions\FunctionDeclarationUnitTest.php:14 Stack trace: #0 {main} thrown in C:\xampp\htdocs\wasteman\scssphp\vendor\squizlabs\php_codesniffer\src\Standards\Squiz\Tests\Functions\FunctionDeclarationUnitTest.php on line 14