Fatal error: Uncaught Error: Interface 'PHP_CodeSniffer\Sniffs\Sniff' not found in /var/www/html/simplesamlphp/vendor/squizlabs/php_codesniffer/src/Sniffs/AbstractPatternSniff.php:19
Stack trace:
#0 {main}
  thrown in /var/www/html/simplesamlphp/vendor/squizlabs/php_codesniffer/src/Sniffs/AbstractPatternSniff.php on line 19