Notice: Use of undefined constant WP_CONTENT_DIR - assumed 'WP_CONTENT_DIR' in X:\wordpress\Nieuwe map\wp-admin\includes\upgrade.php on line 12

Notice: Use of undefined constant ABSPATH - assumed 'ABSPATH' in X:\wordpress\Nieuwe map\wp-admin\includes\upgrade.php on line 16

Warning: require_once(ABSPATHwp-admin/includes/admin.php): failed to open stream: No such file or directory in X:\wordpress\Nieuwe map\wp-admin\includes\upgrade.php on line 16

Fatal error: require_once(): Failed opening required 'ABSPATHwp-admin/includes/admin.php' (include_path='.;C:\php\pear') in X:\wordpress\Nieuwe map\wp-admin\includes\upgrade.php on line 16