Laravel6无法安装sail吗？

1. 运行环境

WSL2; Ubuntu18.4; php artisan serve

1). 当前使用的 Laravel 版本？

Laravel 6

2). 当前使用的 php/php-fpm 版本？

PHP 版本：7.4

3). 当前系统

Windows11

1. 问题描述？

在Laravel6中使用composer require laravel/sail –dev安装报错

2. 您实际得到的结果？

Your requirements could not be resolved to an installable set of packages.

Problem 1
- laravel/sail[v1.14.0, …, 1.x-dev] require illuminate/contracts ^8.0|^9.0 -> found illuminate/contracts[v8.0.0, …, 8.x-dev, v9.0.0-beta.1, …, 9.x-dev] but these were not loaded, likely because it conflicts with another require.
- Root composer.json requires laravel/sail ^1.14 -> satisfiable by laravel/sail[v1.14.0, …, 1.x-dev].

You can also try re-running composer require with an explicit version constraint, e.g. “composer require laravel/sail:*” to figure out if any version is installable, or “composer require laravel/sail:^2.1” if you know which you need.