Update codeigniter

Check your app/Config/Paths.php file to see where your System folder should be:

PHP Code:

class Paths
{
 /**
 * ---------------------------------------------------------------
 * SYSTEM FOLDER NAME
 * ---------------------------------------------------------------
 *
 * This must contain the name of your "system" folder. Include
 * the path if the folder is not in the same directory as this file.
 *
 * @var string
 */
 public $systemDirectory = __DIR__ . '/../../vendor/codeigniter4/framework/system'; 


public $systemDirectory = __DIR__ . '/../../system'; //localhost

public $systemDirectory = __DIR__ . '/../../vendor/codeigniter4/framework/system'; //server

I havent' change it , is a fesh installation with composer

SOLVED ... Upload system folder in vendor and change :

public $systemDirectory = __DIR__ . '/../../vendor/system';