Fatal error: Uncaught Error: Class "PHP_CodeSniffer\Tests\Core\Ruleset\AbstractRulesetTestCase" not found in /var/www/html/realmaps/vendor/squizlabs/php_codesniffer/tests/Core/Ruleset/ExpandRulesetReferenceInternalTest.php:21 Stack trace: #0 {main} thrown in /var/www/html/realmaps/vendor/squizlabs/php_codesniffer/tests/Core/Ruleset/ExpandRulesetReferenceInternalTest.php on line 21