Fatal error: Uncaught Error: Class "PHPUnit_Framework_TestCase" not found in /var/www/erp/spreadsheet/vendor/friendsofphp/php-cs-fixer/src/Test/AbstractTransformerTestCase.php:23 Stack trace: #0 {main} thrown in /var/www/erp/spreadsheet/vendor/friendsofphp/php-cs-fixer/src/Test/AbstractTransformerTestCase.php on line 23