无法在 Laravel 6.x 中安装 laravel/ui

Question

我已经建立了一个新的 Laravel 6 项目并且正在尝试安装一些软件包。 到目前为止，我已经下载了核心包，现在我正在尝试进行 Auth，但是当我尝试安装 laravel/ui 时，composer 给出了这样的错误消息

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

 Problem 1
- Conclusion: remove laravel/framework v6.18.0
- Conclusion: don't install laravel/framework v6.18.0
- laravel/ui 2.x-dev requires illuminate/filesystem ^7.0 -> satisfiable by illuminate/filesystem[7.x-dev, v7.0.0, v7.0.1, v7.0.2, v7.0.3, v7.0.4].
- laravel/ui v2.0.0 requires illuminate/filesystem ^7.0 -> satisfiable by illuminate/filesystem[7.x-dev, v7.0.0, v7.0.1, v7.0.2, v7.0.3, v7.0.4].
- laravel/ui v2.0.1 requires illuminate/filesystem ^7.0 -> satisfiable by illuminate/filesystem[7.x-dev, v7.0.0, v7.0.1, v7.0.2, v7.0.3, v7.0.4].
- don't install illuminate/filesystem 7.x-dev|don't install laravel/framework v6.18.0
- don't install illuminate/filesystem v7.0.0|don't install laravel/framework v6.18.0
- don't install illuminate/filesystem v7.0.1|don't install laravel/framework v6.18.0
- don't install illuminate/filesystem v7.0.2|don't install laravel/framework v6.18.0
- don't install illuminate/filesystem v7.0.3|don't install laravel/framework v6.18.0
- don't install illuminate/filesystem v7.0.4|don't install laravel/framework v6.18.0
- Installation request for laravel/framework (locked at v6.18.0, required as ^6.0) -> satisfiable by laravel/framework[v6.18.0].
- Installation request for laravel/ui ^2.0 -> satisfiable by laravel/ui[2.x-dev, v2.0.0, v2.0.1].

我该怎么做才能解决这个问题？

Answer 1

由于您的错误指示

laravel/ui 2.x-dev需要照明/文件系统 ^7.0 -> 照明/文件系统 [7.x-dev, v7.0.0, v7.0.1, v7.0.2, v7.0.3, v7.0.4] 可满足。

您正在安装依赖于Laravel 7 的Laravel ui 2.x ，这就是您收到此错误的原因。

要解决这个问题，您需要将项目升级到Laravel 7或需要安装Laravel ui 1.x