Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /home/flexinettek/public_html/vendor/symfony/css-selector/Tests/Parser/ParserTest.php:21
Stack trace:
#0 {main}
thrown in /home/flexinettek/public_html/vendor/symfony/css-selector/Tests/Parser/ParserTest.php on line 21