composer-asset-plugin安装失败问题 [ 2.0 版本 ]

[miko@localhost /]$ php /usr/local/bin/composer global require "fxp/composer-asset-plugin:^1.1.2"
Changed current directory to /home/miko/.config/composer
./composer.json has been updated
Loading composer repositories with package information
Updating dependencies (including require-dev)

Installation failed, reverting ./composer.json to its original content.

[Composer\Downloader\TransportException]
Content-Length mismatch

require [--dev] [--prefer-source] [--prefer-dist] [--no-progress] [--no-suggest] [--no-update] [--no-scripts] [--update-no-dev] [--update-with-dependencies] [--ignore-platform-reqs] [--prefer-stable] [--prefer-lowest] [--sort-packages] [-o|--optimize-autoloader] [-a|--classmap-authoritative] [--apcu-autoloader] [--] []...

就是这样了，不明白为什么，求大神指教~~~