[root@centos api]# composer require swooletw/laravel-swoole:^2.11
./composer.json has been updated
Running composer update swooletw/laravel-swoole
Loading composer repositories with package information
Updating dependencies
Your requirements could not be resolved to an installable set of packages.
Problem 1
Root composer.json requires swooletw/laravel-swoole ^2.11 -> satisfiable by swooletw/laravel-swoole[v2.11.0].
swooletw/laravel-swoole v2.11.0 requires illuminate/console ~5.4|~6.0|~7.0|~8.0 -> found illuminate/console[v5.4.0, ..., 5.8.x-dev, v6.0.0, ..., 6.x-dev, v7.0.0, ..., 7.x-dev, v8.0.0, ..., 8.x-dev] but it conflicts with your root composer.json require (^9.0).
Installation failed, reverting ./composer.json and ./composer.lock to their original content.
[root@centos api]#
[root@centos api]# composer require swooletw/laravel-swoole:^2.11 ./composer.json has been updated Running composer update swooletw/laravel-swoole Loading composer repositories with package information Updating dependencies Your requirements could not be resolved to an installable set of packages.
Problem 1
Installation failed, reverting ./composer.json and ./composer.lock to their original content. [root@centos api]#