Laravel FFmpeg error Call to undefined method FFMp

Question

I'm using laravel ffmpeg to create a thumnail fot the video, but when i run the code, it return me

Call to undefined method FFMpeg\FFMpeg::fromDisk()

I don't know what happen to this error, i'm follow the instruction in github. here is my code.

use FFMpeg\FFMpeg;
use FFMpeg\FFProbe;

$thumbnail_name =  md5($request->video_name).'_thumbnail.jpg';
$thumbnail_path = '/assets/' . $request->video_name;
FFMpeg::fromDisk('videos')
        ->open($export_as)
        ->getFrameFromSeconds(10)
        ->export()
        ->toDisk('thumnails')
        ->save($thumbnail_path);

i tried the fromFilesystem method, but it is not working, i also change the value in fromDisk() to public/assets even from c drive like C:\xampp\htdocs\vidpuz\public\assets but also not working, it keep return undefined method error.