laravel/lumen-framework 5.8.x-dev 需要 php ^7.1.3 -> 你的 PHP 版本 (8.0.2) 不满足该要求答案

【问题标题】：laravel/lumen-framework 5.8.x-dev requires php ^7.1.3 -> your PHP version (8.0.2) does not satisfy that requirementlaravel/lumen-framework 5.8.x-dev 需要 php ^7.1.3 -> 你的 PHP 版本 (8.0.2) 不满足该要求
【发布时间】：2021-06-03 13:06:58
【问题描述】：

我正在尝试运行...

composer require diglactic/laravel-breadcrumbs

由于我的 PHP 版本，我收到此错误。有人可以帮忙吗？

laravel/lumen-framework 5.8.x-dev 需要 php ^7.1.3 -> 你的 PHP 版本 (8.0.2) 不满足该要求

我的 composer.json：

{
    "name": "laravel/lumen",
    "description": "The Laravel Lumen Framework.",
    "keywords": ["framework", "laravel", "lumen"],
    "license": "MIT",
    "type": "project",
    "require": {
        "php": "^7.3|^8.0",
        "laravel/legacy-factories": "^1.1",
        "laravel/lumen-framework": "^8.0",
        "laravel/tinker": "^2.6",
        "pusher/pusher-php-server": "^6.1",
        "vluzrmos/tinker": "^1.4",
        "wn/lumen-generators": "^1.3"
    },
    "require-dev": {
        "fakerphp/faker": "^1.9.1",
        "mockery/mockery": "^1.3.1",
        "phpunit/phpunit": "^9.3"
    },
    "autoload": {
        "psr-4": {
            "App\\": "app/",
            "Database\\Factories\\": "database/factories/",
            "Database\\Seeders\\": "database/seeders/"
        }
    },
    "autoload-dev": {
        "classmap": [
            "tests/"
        ]
    },
    "config": {
        "preferred-install": "dist",
        "sort-packages": true,
        "optimize-autoloader": true
    },
    "minimum-stability": "dev",
    "prefer-stable": true,
    "scripts": {
        "post-root-package-install": [
            "@php -r \"file_exists('.env') || copy('.env.example', '.env');\""
        ]
    }
}

完全错误：

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

  Problem 1
    - laravel/lumen-framework 5.8.x-dev requires php ^7.1.3 -> your PHP version (8.0.2) does not satisfy that requirement.
    - laravel/lumen-framework 5.7.x-dev requires php ^7.1.3 -> your PHP version (8.0.2) does not satisfy that requirement.
    - laravel/lumen-framework 5.6.x-dev requires php ^7.1.3 -> your PHP version (8.0.2) does not satisfy that requirement.
    - Installation request for vluzrmos/tinker ^1.4 -> satisfiable by vluzrmos/tinker[v1.4.0].
    - Conclusion: remove laravel/lumen-framework v8.2.3
    - Conclusion: don't install laravel/lumen-framework v8.2.3
    - vluzrmos/tinker v1.4.0 requires laravel/lumen-framework ^5.3 -> satisfiable by laravel/lumen-framework[5.3.x-dev, 5.4.x-dev, 5.5.x-dev, 5.6.x-dev, 5.7.x-dev, 5.8.x-dev].
    - Can only install one of: laravel/lumen-framework[5.3.x-dev, v8.2.3].
    - Can only install one of: laravel/lumen-framework[5.4.x-dev, v8.2.3].
    - Can only install one of: laravel/lumen-framework[5.5.x-dev, v8.2.3].
    - Installation request for laravel/lumen-framework (locked at v8.2.3, required as ^8.0) -> satisfiable by laravel/lumen-framework[v8.2.3].


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

【问题讨论】：

你安装的是什么版本的 Laravel？
我的 Laravel 版本是 8.0
你能提供完整的错误转储吗？
实际上，可能是 wn/lumen-generators 抛出错误，因为它适用于 Laravel 5，而不是 8。编辑完整转储显示它是 vluzrmos/tinker 需要 Laravel 5。 github page 表示它已被废弃并改用官方 Laravel 修补程序
你为什么使用除了 laravel 之外的其他修补程序？

标签： php laravel model-view-controller

【解决方案1】：

你试过这个代码吗？

composer require davejamesmiller/laravel-breadcrumbs:5.2.1

如果还是不行你可以试试

composer install --ignore-platform-reqs

【讨论】：