Problem 1
- hyperf-ext/mail[dev-master, v2.2.0] require hyperf/command ~2.2.0 -> found hyperf/command[v2.2.0-beta1, ..., 2.2.x-dev] but it conflicts with your root composer.json require (~3.0.0).
- hyperf-ext/mail[v2.0.0, ..., v2.0.2] require hyperf/command ^2.0 -> found hyperf/command[v2.0.0, ..., 2.2.x-dev] but it conflicts with your root composer.json require (~3.0.0).
- hyperf-ext/mail v2.1.0 requires hyperf/command ~2.1.0 -> found hyperf/command[v2.1.0-beta1, v2.1.0, 2.1.x-dev] but it conflicts with your root composer.json require (~3.0.0).
- Root composer.json requires hyperf-ext/mail * -> satisfiable by hyperf-ext/mail[dev-master, v2.0.0, ..., v2.2.0].
You can also try re-running composer require with an explicit version constraint, e.g. "composer require hyperf-ext/mail:*" to figure out if any version is installable, or "composer require hyperf-ext/mail:^2.1" if you know which you need.
请求更新支持 php8 hyperf v3.0.0 环境，现在composer安装报错