Warning: Use of undefined constant ABSPATH - assumed 'ABSPATH' (this will throw an Error in a future version of PHP) in C:\wamp64\www\wordpress\wp-settings.php on line 34

Warning: require(ABSPATHwp-includes/version.php): failed to open stream: No such file or directory in C:\wamp64\www\wordpress\wp-settings.php on line 34

Fatal error: require(): Failed opening required 'ABSPATHwp-includes/version.php' (include_path='.;C:\php\pear') in C:\wamp64\www\wordpress\wp-settings.php on line 34