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

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

curl error 28 while downloading https://repo.packagist.org/packages.json: Connection timed out after 10013 milliseconds

解决办法：

删除 composer.lock

执行  composer clearcache

执行  composer update

更换composer镜像源：

composer config -g repo.packagist composer https://mirrors.aliyun.com/composer/