下面由composer教程欄目給大家介紹解決composer錯(cuò)誤：ComposerDownloaderTransportException的方法，希望對(duì)需要的朋友有所幫助！

 [ComposerDownloaderTransportException]   The "http://packagist.org/packages.json" file could not be downloaded: failed to open stream: HTTP request failed!create-project [-s|--stability="..."] [--prefer-source] [--prefer-dist] [--repository-url="..."] [--dev] [--no-dev] [--n o-plugins] [--no-custom-installers] [--no-scripts] [--no-progress] [--keep-vcs] [--no-install] [--ignore-platform-reqs] [package] [directory] [version]

解決方法禁用https請(qǐng)求，改用http方式。所以我們?cè)赾omposer.json文件中設(shè)置一個(gè)本地或全局的composer配置config

方法一：命令行composer config secure-http false。通過命令修改composer.json，效果等同方法二。

方法二：直接改composer.json,給“config”項(xiàng)中加上"secure-http": false

"config" : {           "vendor-dir" : "packages",        "secure-http": false  }

全局配置（推薦）

composer config -l -g//切換到國(guó)內(nèi)源  阿里composer config -g repo.packagist composer https://mirrors.aliyun.com/composer/composer config -g --unset repos.packagist