调用上传图像时出现错误异常“未定义的索引：请求”

Question

我在laravel项目中使用的是“ j0k3r / php-imgur-api-client”包。 它的安装似乎很好，很幸运。 然后我编写了一个测试种子脚本（UnitTestSeeder.php）和一个类（ImgurClient.php），如下所示：

<?php  
use Illuminate\Database\Seeder;  
use App\Libs\Service\ImgurClient;    
class UnitTestSeeder extends Seeder{  
    public function run(){  
        $username = 'your_imgur_username';
        $id = 'Iemhfpo';
        //$response = $this->galleryFavorites($username);//run ok
        //$response = $this->favorites($username);// run ok
        //$response = $this->randomGalleryImages();//run ok


        //$response = $this->uploadImage();//run error        
        //$response = $this->createAlbum();//run error

        print_r($response);
    }

    private function uploadImage(){
        $client = new ImgurClient();
        $fpath = storage_path('app/public/test.jpg');
        $imageData = ['image' => $fpath, 'type'  => 'file'];

        return $client->upload($imageData);
    }
    private function createAlbum(){
        $client = new ImgurClient();
        $album_data = [];
        $album_data['title'] = 'Bracelet';
        $album_data['description'] = 'Beautiful Bracelet';
        $album_data['privacy'] = 'public';
        $album_data['layout'] = 'grid';

        return $client->createAlbum($album_data);
    }
    private function randomGalleryImages(){
        $client = new ImgurClient();
        return $client->randomGalleryImages();
    }
    private function galleryFavorites($username){
        $client = new ImgurClient();
        return $client->galleryFavorites($username);
    }
    private function favorites($username){
        $client = new ImgurClient();
        return $client->favorites($username);
    }

但是很遗憾，如上面的代码注释所示， 一些API调用无法正常工作，而另一些API调用则可以正常工作。

2个调用（createAlbum和uploadImage）引发了这样的异常 Please view my screenshot here 有人遇到过这样的错误吗？谢谢大家！