Fatal error: Uncaught Error: Class "GuzzleHttp\Cookie\CookieJar" not found in C:\xampp8\htdocs\Gsheet\vendor\guzzlehttp\guzzle\src\Cookie\FileCookieJar.php:7 Stack trace: #0 {main} thrown in C:\xampp8\htdocs\Gsheet\vendor\guzzlehttp\guzzle\src\Cookie\FileCookieJar.php on line 7