maatwebsite/excel 2.1.30在升级到Laravel 6时需要照明/支持^5.0错误

我正在尝试将我的Laravel版本从5.8升级到6.0，但每当我将

Laravel/framework

更改为

^6.0

，然后执行composer update时，我就会收到此错误

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

  Problem 1
    - Conclusion: don't install laravel/framework v6.18.40
    - Conclusion: don't install laravel/framework v6.18.39
     ... (Same message for different version)
     ...

    - maatwebsite/excel 2.1.30 requires illuminate/support ^5.0 -> satisfiable by laravel/framework[v5.8.38], illuminate/support[5.0.x-dev, 5.1.x-dev, 5.2.x-dev, 5.3.x-dev, 5.4.x-dev, 5.5.x-dev, 5.6.x-dev, 5.7.17, 5.7.18, 5.7.19, 5.7.x-dev, 5.8.x-dev, v5.0.0, v5.0.22, v5.0.25, v5.0.26, v5.0.28, v5.0.33, v5.0.4, v5.1.1, v5.1.13, v5.1.16, v5.1.2, v5.1.20, v5.1.22, v5.1.25, v5.1.28, v5.1.30, v5.1.31, v5.1.41, v5.1.6, v5.1.8, v5.2.0, v5.2.19, v5.2.21, v5.2.24, v5.2.25, v5.2.26, v5.2.27, v5.2.28, v5.2.31, v5.2.32, v5.2.37, v5.2.43, v5.2.45, v5.2.6, v5.2.7, v5.3.0, v5.3.16, v5.3.23, v5.3.4, v5.4.0, v5.4.13, v5.4.17, v5.4.19, v5.4.27, v5.4.36, v5.4.9, v5.5.0, v5.5.16, v5.5.17, v5.5.2, v5.5.28, v5.5.33, v5.5.34, v5.5.35, v5.5.36, v5.5.37, v5.5.39, v5.5.40, v5.5.41, v5.5.43, v5.5.44, v5.6.0, v5.6.1, v5.6.10, v5.6.11, v5.6.12, v5.6.13, v5.6.14, v5.6.15, v5.6.16, v5.6.17, v5.6.19, v5.6.2, v5.6.20, v5.6.21, v5.6.22, v5.6.23, v5.6.24, v5.6.25, v5.6.26, v5.6.27, v5.6.28, v5.6.29, v5.6.3, v5.6.30, v5.6.31, v5.6.32, v5.6.33, v5.6.34, v5.6.35, v5.6.36, v5.6.37, v5.6.38, v5.6.39, v5.6.4, v5.6.5, v5.6.6, v5.6.7, v5.6.8, v5.6.9, v5.7.0, v5.7.1, v5.7.10, v5.7.11, v5.7.15, v5.7.2, v5.7.20, v5.7.21, v5.7.22, v5.7.23, v5.7.26, v5.7.27, v5.7.28, v5.7.3, v5.7.4, v5.7.5, v5.7.6, v5.7.7, v5.7.8, v5.7.9, v5.8.0, v5.8.11, v5.8.12, v5.8.14, v5.8.15, v5.8.17, v5.8.18, v5.8.19, v5.8.2, v5.8.20, v5.8.22, v5.8.24, v5.8.27, v5.8.28, v5.8.29, v5.8.3, v5.8.30, v5.8.31, v5.8.32, v5.8.33, v5.8.34, v5.8.35, v5.8.36, v5.8.4, v5.8.8, v5.8.9].
    - maatwebsite/excel 2.1.30 requires illuminate/support ^5.0 -> satisfiable by laravel/framework[v5.8.38], illuminate/support[5.0.x-dev, 5.1.x-dev, 5.2.x-dev, 5.3.x-dev, 5.4.x-dev, 5.5.x-dev, 5.6.x-dev, 5.7.17, 5.7.18, 5.7.19, 5.7.x-dev, 5.8.x-dev, v5.0.0, v5.0.22, v5.0.25, v5.0.26, v5.0.28, v5.0.33, v5.0.4, v5.1.1, v5.1.13, v5.1.16, v5.1.2, v5.1.20, v5.1.22, v5.1.25, v5.1.28, v5.1.30, v5.1.31, v5.1.41, v5.1.6, v5.1.8, v5.2.0, v5.2.19, v5.2.21, v5.2.24, v5.2.25, v5.2.26, v5.2.27, v5.2.28, v5.2.31, v5.2.32, v5.2.37, v5.2.43, v5.2.45, v5.2.6, v5.2.7, v5.3.0, v5.3.16, v5.3.23, v5.3.4, v5.4.0, v5.4.13, v5.4.17, v5.4.19, v5.4.27, v5.4.36, v5.4.9, v5.5.0, v5.5.16, v5.5.17, v5.5.2, v5.5.28, v5.5.33, v5.5.34, v5.5.35, v5.5.36, v5.5.37, v5.5.39, v5.5.40, v5.5.41, v5.5.43, v5.5.44, v5.6.0, v5.6.1, v5.6.10, v5.6.11, v5.6.12, v5.6.13, v5.6.14, v5.6.15, v5.6.16, v5.6.17, v5.6.19, v5.6.2, v5.6.20, v5.6.21, v5.6.22, v5.6.23, v5.6.24, v5.6.25, v5.6.26, v5.6.27, v5.6.28, v5.6.29, v5.6.3, v5.6.30, v5.6.31, v5.6.32, v5.6.33, v5.6.34, v5.6.35, v5.6.36, v5.6.37, v5.6.38, v5.6.39, v5.6.4, v5.6.5, v5.6.6, v5.6.7, v5.6.8, v5.6.9, v5.7.0, v5.7.1, v5.7.10, v5.7.11, v5.7.15, v5.7.2, v5.7.20, v5.7.21, v5.7.22, v5.7.23, v5.7.26, v5.7.27, v5.7.28, v5.7.3, v5.7.4, v5.7.5, v5.7.6, v5.7.7, v5.7.8, v5.7.9, v5.8.0, v5.8.11, v5.8.12, v5.8.14, v5.8.15, v5.8.17, v5.8.18, v5.8.19, v5.8.2, v5.8.20, v5.8.22, v5.8.24, v5.8.27, v5.8.28, v5.8.29, v5.8.3, v5.8.30, v5.8.31, v5.8.32, v5.8.33, v5.8.34, v5.8.35, v5.8.36, v5.8.4, v5.8.8, v5.8.9].
    ... (Same message for different versions)
    ...

    - don't install laravel/framework 6.x-dev|don't install illuminate/support 5.5.x-dev
    - don't install laravel/framework 6.x-dev|don't install illuminate/support 5.6.x-dev
    ...
    ...
   
    - Installation request for laravel/framework ^6.0 -> satisfiable by laravel/framework[6.x-dev, v6.0.0, v6.0.1, v6.0.2, v6.0.3, v6.0.4, v6.1.0, v6.10.0, v6.10.1, v6.11.0, v6.12.0, v6.13.0, v6.13.1, v6.14.0, v6.15.0, v6.15.1, v6.16.0, v6.17.0, v6.17.1, v6.18.0, v6.18.1, v6.18.10, v6.18.11, v6.18.12, v6.18.13, v6.18.14, v6.18.15, v6.18.16, v6.18.17, v6.18.18, v6.18.19, v6.18.2, v6.18.20, v6.18.21, v6.18.22, v6.18.23, v6.18.24, v6.18.25, v6.18.26, v6.18.27, v6.18.28, v6.18.29, v6.18.3, v6.18.30, v6.18.31, v6.18.32, v6.18.33, v6.18.34, v6.18.35, v6.18.36, v6.18.37, v6.18.38, v6.18.39, v6.18.4, v6.18.40, v6.18.5, v6.18.6, v6.18.7, v6.18.8, v6.18.9, v6.2.0, v6.3.0, v6.4.0, v6.4.1, v6.5.0, v6.5.1, v6.5.2, v6.6.0, v6.6.1, v6.6.2, v6.7.0, v6.8.0, v6.9.0].
    - Installation request for maatwebsite/excel ~2.1.0 -> satisfiable by maatwebsite/excel[2.1.10, 2.1.11, 2.1.12, 2.1.13, 2.1.14, 2.1.15, 2.1.16, 2.1.17, 2.1.18, 2.1.19, 2.1.20, 2.1.21, 2.1.22, 2.1.23, 2.1.24, 2.1.25, 2.1.26, 2.1.27, 2.1.28, 2.1.29, 2.1.30, 2.1.4, 2.1.5, 2.1.6, 2.1.7, 2.1.8, 2.1.9, 2.1.x-dev, v2.1.0, v2.1.1, v2.1.2, v2.1.3].

关于我的composer.json

{
    "name": "laravel/laravel",
    "description": "The Laravel Framework.",
    "keywords": ["framework", "laravel"],
    "license": "MIT",
    "type": "project",
    "require": {
        "php": "^7.1.3",
        "barryvdh/laravel-dompdf": "^0.8.4",
        "dpodsiadlo/svg-charts": "^1.0",
        "fideloper/proxy": "^4.0",
        "guzzlehttp/guzzle": "^7.0",
        "laravel/framework": "^6.0",
        "laravel/tinker": "^1.0",
        "maatwebsite/excel": "~2.1.0",
        "predis/predis": "~1.1@dev",
        "symfony/translation": "4.3.8"
    },
    "require-dev": {
        "barryvdh/laravel-ide-helper": "^2.8",
        "beyondcode/laravel-dump-server": "^1.0",
        "filp/whoops": "^2.0",
        "fzaninotto/faker": "^1.4",
        "laravel/browser-kit-testing": "2.*",
        "mockery/mockery": "^1.0",
        "nunomaduro/collision": "^2.0",
        "phpunit/phpunit": "^7.0",
        "symfony/css-selector": "3.1.*",
        "symfony/dom-crawler": "3.1.*"
    },
    "autoload": {
        "files": ["app/Http/helpers.php"],
        "exclude-from-classmap": ["app/Http/Controllers/ZOld/"],
        "classmap": [
            "database/seeds",
            "database/factories"
        ],
        "psr-4": {
            "App\\": "app/"
        }
    },
    "extra": {
        "laravel": {
            "dont-discover": [
            ]
        }
    },
    "autoload-dev": {
        "files": ["app/Http/helpers.php"],
        "exclude-from-classmap": ["app/Http/Controllers/ZOld/"],
        "psr-4": {
            "Tests\\": "tests/"
        }
    },
    "scripts": {
        "post-root-package-install": [
            "@php -r \"file_exists('.env') || copy('.env.example', '.env');\""
        ],
        "post-create-project-cmd": [
            "@php artisan key:generate --ansi"
        ],
        "post-autoload-dump": [
            "Illuminate\\Foundation\\ComposerScripts::postAutoloadDump",
            "@php artisan package:discover --ansi"
        ]
    },
    "config": {
        "preferred-install": "dist",
        "sort-packages": true,
        "optimize-autoloader": true
    },
    "minimum-stability": "dev",
    "prefer-stable": true
}

---

我也遇到了同样的问题。使用此步骤解决的问题（我使用mac）：

使用PHP 7.3将代码链接到以下步骤：

• brew更新
• brew安装php@7.3
• brew链接php@7.3--武力

那么

• 编写器需要maatwebsite/excel
• 作曲家更新

---

完成。

我遇到了同样的问题。使用此步骤解决的问题（我使用mac）：

使用PHP 7.3将代码链接到以下步骤：

• brew更新
• brew安装php@7.3
• brew链接php@7.3--武力

那么

• 编写器需要maatwebsite/excel
• 作曲家更新

完成了