compeser 提示Warning from https://repo.packagist.org: Support for Composer 1 is deprecated and some packages will

在安装Composer时报：Warning from https://repo.packagist.org: Support for Composer 1 is deprecated and some packages will not be available. You should upgrade to Composer 2. See https://blog.packagist.com/deprecating-composer-1-support/
问题：已弃用对 Composer 1 的支持，并且某些软件包将不可用。您应该升级到 Composer 2。

 

使用命令

 composer self-update

更新版本。