Fatal error: Uncaught Error: Interface "PhpCsFixer\Differ\DifferInterface" not found in I:\www\pvcUtils\vendor\friendsofphp\php-cs-fixer\tests\Fixtures\FakeDiffer.php:20 Stack trace: #0 {main} thrown in I:\www\pvcUtils\vendor\friendsofphp\php-cs-fixer\tests\Fixtures\FakeDiffer.php on line 20