Fatal error: Uncaught Error: Interface "League\Flysystem\FilesystemOperationFailed" not found in C:\WebServer\htdocs\bookshelf\vendor\league\flysystem\src\UnableToDeleteDirectory.php:10 Stack trace: #0 {main} thrown in C:\WebServer\htdocs\bookshelf\vendor\league\flysystem\src\UnableToDeleteDirectory.php on line 10