Fatal error: Uncaught Error: Interface "GuzzleHttp\BodySummarizerInterface" not found in C:\Users\Administrator\Desktop\xamp\htdocs\sdk\guzzlehttp\guzzle\src\BodySummarizer.php:7 Stack trace: #0 {main} thrown in C:\Users\Administrator\Desktop\xamp\htdocs\sdk\guzzlehttp\guzzle\src\BodySummarizer.php on line 7