Fatal error: Uncaught Error: Interface "Box\Spout\Reader\IteratorInterface" not found in D:\web\teleflex\prd\assets\spout\src\Spout\Reader\XLSX\RowIterator.php:21 Stack trace: #0 {main} thrown in D:\web\teleflex\prd\assets\spout\src\Spout\Reader\XLSX\RowIterator.php on line 21