Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/nexerpin/demo.nex-erp.in/vendor/maennchen/zipstream-php/test/BigintTest.php:11 Stack trace: #0 {main} thrown in /home/nexerpin/demo.nex-erp.in/vendor/maennchen/zipstream-php/test/BigintTest.php on line 11