Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/alterna/private_assets.alternalab.it/vendor/tecnickcom/tc-lib-barcode/test/TestUtil.php:31 Stack trace: #0 {main} thrown in /home/alterna/private_assets.alternalab.it/vendor/tecnickcom/tc-lib-barcode/test/TestUtil.php on line 31