composer update时报错 [Composer\Downloader\TransportException] curl error 60 while downloading https://packagist.laravel-china.org/packages.json: Peers Certificate has expired. 很简单,打开composer.json文件 把 "repositories": { "packagist": { "type": "composer", "url": "https://packagist.laravel-china.org" } } 替换为 "repositories": { "packa...