composer TransportException报错

1. 错误展示
2. 解决方案
3. 可以先更新composer composer self-update,再次尝试
4. 镜像设置中国 composer config -g repo.packagist composer https://packagist.phpcomposer.com
5. secure-http 改成false composer config -g secure-http false
6. 修改composer.json 文件

   {
     "repositories": {
         "packagist": {
             "type": "composer",
             "url": "https://packagist.phpcomposer.com"
         }
     }
   }