Fatal error: Uncaught Error: Interface 'GuzzleHttp\Promise\PromiseInterface' not found in /data/htmlwww/workspace/web-tubanzhang/vendor/guzzlehttp/promises/src/Promise.php:9
Stack trace:
#0 {main}
thrown in /data/htmlwww/workspace/web-tubanzhang/vendor/guzzlehttp/promises/src/Promise.php on line 9