Fatal error: Uncaught Error: Interface "League\Flysystem\FilesystemReader" not found in C:\xampp\htdocs\adminlte3\vendor\league\flysystem\src\FilesystemOperator 3.php:7 Stack trace: #0 {main} thrown in C:\xampp\htdocs\adminlte3\vendor\league\flysystem\src\FilesystemOperator 3.php on line 7