无法使用 Laravel 6.9 安装依赖项

Question

我正在尝试通过以下方式从https://github.com/barryvdh/laravel-debugbar安装barryvdh/laravel-debugbar ：

composer require barryvdh/laravel-debugbar --dev

我收到这些错误：

c:\wamp64\www\blog>php artisan --version
Laravel Framework 6.9.0

c:\wamp64\www\blog>composer require barryvdh/laravel-debugbar --dev
Using version ^3.2 for barryvdh/laravel-debugbar
./composer.json has been updated
Loading composer repositories with package information
Updating dependencies (including require-dev)
Your requirements could not be resolved to an installable set of packages.

  Problem 1
    - Conclusion: remove laravel/framework v6.9.0
    - Conclusion: don't install laravel/framework v6.9.0
    - way/generators 2.0 requires illuminate/support 4.1.* -> satisfiable by illuminate/support[4.1.x-dev, v4.1.0, v4.1.1, v4.1.10, v4.1.11, v4.1.12, v4.1.13, v4.1.14, v4.1.15, v4.1.16, v4.1.17, v4.1.18, v4.1.19, v4.1.2, v4.1.20, v4.1.21, v4.1.22, v4.1.23, v4.1.24, v4.1.25, v4.1.26, v4.1.27, v4.1.28, v4.1.29, v4.1.3, v4.1.30, v4.1.4, v4.1.5, v4.1.6, v4.1.7, v4.1.8, v4.1.9].
    - way/generators 2.1 requires illuminate/support 4.1.* -> satisfiable by illuminate/support[4.1.x-dev, v4.1.0, v4.1.1, v4.1.10, v4.1.11, v4.1.12, v4.1.13, v4.1.14, v4.1.15, v4.1.16, v4.1.17, v4.1.18, v4.1.19, v4.1.2, v4.1.20, v4.1.21, v4.1.22, v4.1.23, v4.1.24, v4.1.25, v4.1.26, v4.1.27, v4.1.28, v4.1.29, v4.1.3, v4.1.30, v4.1.4, v4.1.5, v4.1.6, v4.1.7, v4.1.8, v4.1.9].
    - way/generators 2.2 requires illuminate/support 4.1.* -> satisfiable by illuminate/support[4.1.x-dev, v4.1.0, v4.1.1, v4.1.10, v4.1.11, v4.1.12, v4.1.13, v4.1.14, v4.1.15, v4.1.16, v4.1.17, v4.1.18, v4.1.19, v4.1.2, v4.1.20, v4.1.21, v4.1.22, v4.1.23, v4.1.24, v4.1.25, v4.1.26, v4.1.27, v4.1.28, v4.1.29, v4.1.3, v4.1.30, v4.1.4, v4.1.5, v4.1.6, v4.1.7, v4.1.8, v4.1.9].
    - way/generators 2.3 requires illuminate/support ~4.1 -> satisfiable by illuminate/support[4.1.x-dev, 4.2.x-dev, v4.1.0, v4.1.1, v4.1.10, v4.1.11, v4.1.12, v4.1.13, v4.1.14, v4.1.15, v4.1.16, v4.1.17, v4.1.18, v4.1.19, v4.1.2, v4.1.20, v4.1.21, v4.1.22, v4.1.23, v4.1.24, v4.1.25, v4.1.26, v4.1.27, v4.1.28, v4.1.29, v4.1.3, v4.1.30, v4.1.4, v4.1.5, v4.1.6, v4.1.7, v4.1.8, v4.1.9, v4.2.0-BETA1, v4.2.1, v4.2.12, v4.2.16, v4.2.17, v4.2.2, v4.2.3, v4.2.4, v4.2.5, v4.2.6, v4.2.7, v4.2.8, v4.2.9].
    - way/generators 2.4 requires illuminate/support ~4.1 -> satisfiable by illuminate/support[4.1.x-dev, 4.2.x-dev, v4.1.0, v4.1.1, v4.1.10, v4.1.11, v4.1.12, v4.1.13, v4.1.14, v4.1.15, v4.1.16, v4.1.17, v4.1.18, v4.1.19, v4.1.2, v4.1.20, v4.1.21, v4.1.22, v4.1.23, v4.1.24, v4.1.25, v4.1.26, v4.1.27, v4.1.28, v4.1.29, v4.1.3, v4.1.30, v4.1.4, v4.1.5, v4.1.6, v4.1.7, v4.1.8, v4.1.9, v4.2.0-BETA1, v4.2.1, v4.2.12, v4.2.16, v4.2.17, v4.2.2, v4.2.3, v4.2.4, v4.2.5, v4.2.6, v4.2.7, v4.2.8, v4.2.9].
    - way/generators 2.5 requires illuminate/support ~4.1 -> satisfiable by illuminate/support[4.1.x-dev, 4.2.x-dev, v4.1.0, v4.1.1, v4.1.10, v4.1.11, v4.1.12, v4.1.13, v4.1.14, v4.1.15, v4.1.16, v4.1.17, v4.1.18, v4.1.19, v4.1.2, v4.1.20, v4.1.21, v4.1.22, v4.1.23, v4.1.24, v4.1.25, v4.1.26, v4.1.27, v4.1.28, v4.1.29, v4.1.3, v4.1.30, v4.1.4, v4.1.5, v4.1.6, v4.1.7, v4.1.8, v4.1.9, v4.2.0-BETA1, v4.2.1, v4.2.12, v4.2.16, v4.2.17, v4.2.2, v4.2.3, v4.2.4, v4.2.5, v4.2.6, v4.2.7, v4.2.8, v4.2.9].
    - way/generators 2.6 requires illuminate/support ~4.1 -> satisfiable by illuminate/support[4.1.x-dev, 4.2.x-dev, v4.1.0, v4.1.1, v4.1.10, v4.1.11, v4.1.12, v4.1.13, v4.1.14, v4.1.15, v4.1.16, v4.1.17, v4.1.18, v4.1.19, v4.1.2, v4.1.20, v4.1.21, v4.1.22, v4.1.23, v4.1.24, v4.1.25, v4.1.26, v4.1.27, v4.1.28, v4.1.29, v4.1.3, v4.1.30, v4.1.4, v4.1.5, v4.1.6, v4.1.7, v4.1.8, v4.1.9, v4.2.0-BETA1, v4.2.1, v4.2.12, v4.2.16, v4.2.17, v4.2.2, v4.2.3, v4.2.4, v4.2.5, v4.2.6, v4.2.7, v4.2.8, v4.2.9].
    - way/generators 2.6.1 requires illuminate/support ~4.0 -> satisfiable by illuminate/support[4.0.x-dev, 4.1.x-dev, 4.2.x-dev, v4.0.0, v4.0.0-BETA2, v4.0.0-BETA3, v4.0.0-BETA4, v4.0.1, v4.0.10, v4.0.2, v4.0.3, v4.0.4, v4.0.5, v4.0.6, v4.0.7, v4.0.8, v4.0.9, v4.1.0, v4.1.1, v4.1.10, v4.1.11, v4.1.12, v4.1.13, v4.1.14, v4.1.15, v4.1.16, v4.1.17, v4.1.18, v4.1.19, v4.1.2, v4.1.20, v4.1.21, v4.1.22, v4.1.23, v4.1.24, v4.1.25, v4.1.26, v4.1.27, v4.1.28, v4.1.29, v4.1.3, v4.1.30, v4.1.4, v4.1.5, v4.1.6, v4.1.7, v4.1.8, v4.1.9, v4.2.0-BETA1, v4.2.1, v4.2.12, v4.2.16, v4.2.17, v4.2.2, v4.2.3, v4.2.4, v4.2.5, v4.2.6, v4.2.7, v4.2.8, v4.2.9].
    - don't install illuminate/support 4.1.x-dev|don't install laravel/framework v6.9.0
    - don't install illuminate/support v4.1.0|don't install laravel/framework v6.9.0
    - don't install illuminate/support v4.1.1|don't install laravel/framework v6.9.0
    - don't install illuminate/support v4.1.10|don't install laravel/framework v6.9.0
    - don't install illuminate/support v4.1.11|don't install laravel/framework v6.9.0
    - don't install illuminate/support v4.1.12|don't install laravel/framework v6.9.0
    - don't install illuminate/support v4.1.13|don't install laravel/framework v6.9.0
    - don't install illuminate/support v4.1.14|don't install laravel/framework v6.9.0
    - don't install illuminate/support v4.1.15|don't install laravel/framework v6.9.0
    - don't install illuminate/support v4.1.16|don't install laravel/framework v6.9.0
    - don't install illuminate/support v4.1.17|don't install laravel/framework v6.9.0
    - don't install illuminate/support v4.1.18|don't install laravel/framework v6.9.0
    - don't install illuminate/support v4.1.19|don't install laravel/framework v6.9.0
    - don't install illuminate/support v4.1.2|don't install laravel/framework v6.9.0
    - don't install illuminate/support v4.1.20|don't install laravel/framework v6.9.0
    - don't install illuminate/support v4.1.21|don't install laravel/framework v6.9.0
    - don't install illuminate/support v4.1.22|don't install laravel/framework v6.9.0
    - don't install illuminate/support v4.1.23|don't install laravel/framework v6.9.0
    - don't install illuminate/support v4.1.24|don't install laravel/framework v6.9.0
    - don't install illuminate/support v4.1.25|don't install laravel/framework v6.9.0
    - don't install illuminate/support v4.1.26|don't install laravel/framework v6.9.0
    - don't install illuminate/support v4.1.27|don't install laravel/framework v6.9.0
    - don't install illuminate/support v4.1.28|don't install laravel/framework v6.9.0
    - don't install illuminate/support v4.1.29|don't install laravel/framework v6.9.0
    - don't install illuminate/support v4.1.3|don't install laravel/framework v6.9.0
    - don't install illuminate/support v4.1.30|don't install laravel/framework v6.9.0
    - don't install illuminate/support v4.1.4|don't install laravel/framework v6.9.0
    - don't install illuminate/support v4.1.5|don't install laravel/framework v6.9.0
    - don't install illuminate/support v4.1.6|don't install laravel/framework v6.9.0
    - don't install illuminate/support v4.1.7|don't install laravel/framework v6.9.0
    - don't install illuminate/support v4.1.8|don't install laravel/framework v6.9.0
    - don't install illuminate/support v4.1.9|don't install laravel/framework v6.9.0
    - don't install illuminate/support 4.2.x-dev|don't install laravel/framework v6.9.0
    - don't install illuminate/support v4.2.0-BETA1|don't install laravel/framework v6.9.0
    - don't install illuminate/support v4.2.1|don't install laravel/framework v6.9.0
    - don't install illuminate/support v4.2.12|don't install laravel/framework v6.9.0
    - don't install illuminate/support v4.2.16|don't install laravel/framework v6.9.0
    - don't install illuminate/support v4.2.17|don't install laravel/framework v6.9.0
    - don't install illuminate/support v4.2.2|don't install laravel/framework v6.9.0
    - don't install illuminate/support v4.2.3|don't install laravel/framework v6.9.0
    - don't install illuminate/support v4.2.4|don't install laravel/framework v6.9.0
    - don't install illuminate/support v4.2.5|don't install laravel/framework v6.9.0
    - don't install illuminate/support v4.2.6|don't install laravel/framework v6.9.0
    - don't install illuminate/support v4.2.7|don't install laravel/framework v6.9.0
    - don't install illuminate/support v4.2.8|don't install laravel/framework v6.9.0
    - don't install illuminate/support v4.2.9|don't install laravel/framework v6.9.0
    - don't install illuminate/support 4.0.x-dev|don't install laravel/framework v6.9.0
    - don't install illuminate/support v4.0.0|don't install laravel/framework v6.9.0
    - don't install illuminate/support v4.0.0-BETA2|don't install laravel/framework v6.9.0
    - don't install illuminate/support v4.0.0-BETA3|don't install laravel/framework v6.9.0
    - don't install illuminate/support v4.0.0-BETA4|don't install laravel/framework v6.9.0
    - don't install illuminate/support v4.0.1|don't install laravel/framework v6.9.0
    - don't install illuminate/support v4.0.10|don't install laravel/framework v6.9.0
    - don't install illuminate/support v4.0.2|don't install laravel/framework v6.9.0
    - don't install illuminate/support v4.0.3|don't install laravel/framework v6.9.0
    - don't install illuminate/support v4.0.4|don't install laravel/framework v6.9.0
    - don't install illuminate/support v4.0.5|don't install laravel/framework v6.9.0
    - don't install illuminate/support v4.0.6|don't install laravel/framework v6.9.0
    - don't install illuminate/support v4.0.7|don't install laravel/framework v6.9.0
    - don't install illuminate/support v4.0.8|don't install laravel/framework v6.9.0
    - don't install illuminate/support v4.0.9|don't install laravel/framework v6.9.0
    - Installation request for laravel/framework (locked at v6.9.0, required as ^6.2) -> satisfiable by laravel/framework[v6.9.0].
    - Installation request for way/generators ~2.0 -> satisfiable by way/generators[2.0, 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.6.1].


Installation failed, reverting ./composer.json to its original content.

如何解决这个错误？

Answer 1

从你的composer.json文件中删除way/generators并运行composer update

"require-dev": {
    .....
    "way/generators": "~2.0"", // <-- remove this line
}

way/generators适用于Laravel 4.2 及以下版本，您使用的是Laravel ^6.9

有用的链接： https : //packagist.org/packages/way/generators

Answer 2

由于这种包方式/生成器，您遇到了错误

删除composer.json文件中的方式/生成器

---

在这里阅读： https : //github.com/JeffreyWay/Laravel-4-Generators

Laravel 4.2 及以下

要通过 Composer 安装此软件包，您可以通过这种方式编辑 Composer.json 文件

"require-dev": {
    "way/generators": "~2.0"
}

Laravel 5+

如果您使用的是 Laravel 5+，请改用此包。

---

解决方案：你目前使用的是Laravel 6.9所以使用这个包： https : //github.com/laracasts/Laravel-5-Generators-Extended