Warning: require(C:\xampp\htdocs\demo/wp-includes/version.php): Failed to open stream: No such file or directory in C:\xampp\htdocs\demo\wp-settings.php on line 34

Fatal error: Uncaught Error: Failed opening required 'C:\xampp\htdocs\demo/wp-includes/version.php' (include_path='C:\xampp\php\PEAR') in C:\xampp\htdocs\demo\wp-settings.php:34 Stack trace: #0 C:\xampp\htdocs\demo\wp-config.php(28): require_once() #1 C:\xampp\htdocs\demo\wp-load.php(50): require_once('C:\\xampp\\htdocs...') #2 C:\xampp\htdocs\demo\wp-signup.php(11): require('C:\\xampp\\htdocs...') #3 {main} thrown in C:\xampp\htdocs\demo\wp-settings.php on line 34