I got simple/silly issue while uploading multiple photos with dropzone, I have seen many tutorial like this http://maxoffsky.com/code-blog/howto-ajax-multiple-file-upload-in-laravel/ .
It always insert this code while uploading :
$extension = File::extension($file['name']);
but i get an error for : Class 'App\Http\Controllers\File' not found and i dont know where to find that class
How to fix that?