Unable to rebuild thumbnails via CLI

[Jake B.]

PHP:

<?php

namespace XFMG\Cli\Command\Rebuild;

use XF\Cli\Command\Rebuild\AbstractRebuildCommand;

class RebuildAlbumThumbnails extends AbstractRebuildCommand
{
    protected function getRebuildName()
    {
        return 'xfmg-album-thumbnails';
    }

    protected function getRebuildDescription()
    {
        return 'Rebuilds album thumbnails.';
    }

    protected function getRebuildClass()
    {
        return 'XFMG:AlbumThumb';
    }
}