Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /var/www/erp/spreadsheet/vendor/symfony/options-resolver/Tests/OptionsResolverTest.php:20 Stack trace: #0 {main} thrown in /var/www/erp/spreadsheet/vendor/symfony/options-resolver/Tests/OptionsResolverTest.php on line 20