报错一：
[InvalidArgumentException]
Could not find a version of package suzhif/laravel-workerman matching your minimum-stability (dev). Require it with an explicit version constraint allowing its desired
stability.
原因： 新发布的 composer 包没有设置版本号
1 | composer xxxxx/xxxxx:dev-master |
报错二：
[InvalidArgumentException]
Could not find package xxxxx/xxxxx.Did you mean this?
xxxxx/xxxxx
composer -v 查看版本号。composer 1.* 版本已经不在支持新发布的包，升级到 2.* 版本。
1 | composer self-update |
升级后再安装