Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /home/wwiwil/apps/iwill-laravel/vendor/psr/log/Psr/Log/Test/LoggerInterfaceTest.php:15 Stack trace: #0 {main} thrown in /home/wwiwil/apps/iwill-laravel/vendor/psr/log/Psr/Log/Test/LoggerInterfaceTest.php on line 15