composer安装迅搜，为什么一直报错呢？[2.0]

composer 安装迅搜，为什么一直报错呢？

$ composer require --prefer-dist hightman/xunsearch "*@beta"
./composer.json has been updated
Running composer update hightman/xunsearch
Loading composer repositories with package information
https://mirrors.aliyun.com/composer could not be fully loaded (curl error 61 while downloading https://mirrors.aliyun.com/composer/p2/hightman/xunsearch.json: Error while processing content unencoding: Unknown failure within decompression software.), package information was loaded from the local cache and may be out of date

Installation failed, reverting ./composer.json and ./composer.lock to their original content.

                                                                                
  [Composer\Downloader\TransportException]                                      
  curl error 61 while downloading https://mirrors.aliyun.com/composer/p2/hightman/xunsearch.json: Error while process
  ing content unencoding: Unknown failure within decompression software.        
                                                                                

require [--dev] [--dry-run] [--prefer-source] [--prefer-dist] [--fixed] [--no-suggest] [--no-progress] [--no-update] [--no-install] [--no-scripts] [--update-no-dev] [-w|--update-with-dependencies] [-W|--update-with-all-dependencies] [--with-dependencies] [--with-all-dependencies] [--ignore-platform-req IGNORE-PLATFORM-REQ] [--ignore-platform-reqs] [--prefer-stable] [--prefer-lowest] [--sort-packages] [-o|--optimize-autoloader] [-a|--classmap-authoritative] [--apcu-autoloader] [--apcu-autoloader-prefix APCU-AUTOLOADER-PREFIX] [--] [<packages>]...


Administrator@PV-3 MINGW64 /d/root/PHPTutorial/WWW/newyii/advanced ((2.0.39))
$

https://mirrors.aliyun.com/composer could not be fully loaded (curl error 61 while downloading https://mirrors.aliyun.com/composer/p2/hightman/xunsearch.json
估计是网络问题。