Warning: require_once(header/header.php): failed to open stream: No such file or directory in E:\www\fcha_web\fichiers\Equi.php on line 2

Fatal error: require_once(): Failed opening required 'header/header.php' (include_path='E:\XAMPP\php\PEAR') in E:\www\fcha_web\fichiers\Equi.php on line 2