Fatal error: Uncaught Error: Class 'Symfony\Component\HttpClient\Chunk\DataChunk' not found in D:\workspaces\liZiPingBack\vendor\symfony\http-client\Chunk\LastChunk.php:19 Stack trace: #0 {main} thrown in D:\workspaces\liZiPingBack\vendor\symfony\http-client\Chunk\LastChunk.php on line 19