( ! ) Fatal error: Uncaught Error: Class "Aws\S3\S3Transfer\Progress\AbstractTransferListener" not found in C:\wamp64\www\upload\vendor\aws\aws-sdk-php\src\S3\S3Transfer\Progress\MultiProgressTracker.php on line 7
( ! ) Error: Class "Aws\S3\S3Transfer\Progress\AbstractTransferListener" not found in C:\wamp64\www\upload\vendor\aws\aws-sdk-php\src\S3\S3Transfer\Progress\MultiProgressTracker.php on line 7
Call Stack
#	Time	Memory	Function	Location
1	0.0322	581312	{main}( )	...\MultiProgressTracker.php:0