Fatal error: Uncaught Error: Class 'PHPUnit_Framework_TestCase' not found in /var/www/html/a2billing/vendor/phpdocumentor/reflection-docblock/tests/phpDocumentor/Reflection/DocBlock/DescriptionTest.php:23 Stack trace: #0 {main} thrown in /var/www/html/a2billing/vendor/phpdocumentor/reflection-docblock/tests/phpDocumentor/Reflection/DocBlock/DescriptionTest.php on line 23