出现The "topthink/think-installer" plugin was skipped because it requires a Plugin API version ("^1.0") that does not match your Composer installation ("2.1.0")
解决步骤:
①清除composer之前的镜像:composer config -g --unset repos.packagist
②更新thinkPHP版本:composer update topthink/framework --no-plugins
③重新安装swoole插件:
composer require topthink/think-swoole=2.0.*