Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestSuite" not found in C:\01_Projekte\liga_24\phpseclib\vendor\squizlabs\php_codesniffer\tests\TestSuite7.php:15 Stack trace: #0 {main} thrown in C:\01_Projekte\liga_24\phpseclib\vendor\squizlabs\php_codesniffer\tests\TestSuite7.php on line 15