Fatal error: Uncaught Error: Class 'RingCentral\Psr7\StreamDecoratorTrait' not found in C:\gen\ms_core\DiscordApi\vendor\ringcentral\psr7\src\MultipartStream.php:10 Stack trace: #0 {main} thrown in C:\gen\ms_core\DiscordApi\vendor\ringcentral\psr7\src\MultipartStream.php on line 10