Fatal error: Uncaught Error: Class 'PHP_CodeSniffer\Config' not found in /var/www/html/simplesamlphp/vendor/squizlabs/php_codesniffer/tests/ConfigDouble.php:23
Stack trace:
#0 {main}
  thrown in /var/www/html/simplesamlphp/vendor/squizlabs/php_codesniffer/tests/ConfigDouble.php on line 23