Fatal error: Uncaught Error: Interface "OSS\Signer\SignerInterface" not found in /www/wwwroot/saas.sywhtv.cn/vendor/aliyuncs/oss-sdk-php/src/OSS/Signer/SignerV4.php:11 Stack trace: #0 {main} thrown in /www/wwwroot/saas.sywhtv.cn/vendor/aliyuncs/oss-sdk-php/src/OSS/Signer/SignerV4.php on line 11