laravel - 不能在 Laravel 8 中使用旧工厂

Question

我正在将我的 laravel 7.x 项目升级到 8。
我现在坚持使用遗留工厂，因为我有很多它们并且在测试和其他事情中使用它们，所以需要永远切换到新的类结构。
问题是我似乎无法在本地运行我的播种机或测试(有旧工厂)。
我导入了新的 laravel/legacy-factories并在我的播种机上设置命名空间并更新了 composer.json 文件。但是每次我尝试运行播种机或测试时，都会出现错误

Unable to locate factory for [App\Models\User] (or any other model)

我删除了 classmap来自 composer.json正如文档所建议的那样，但在有和没有到位的情况下都进行了尝试。
我试过完全删除所有缓存并运行 composer install没有快乐。
还有其他人有这个问题吗？
更新 - 这是我的 composer.json 文件。一些线路已被删除。

{
    "require": {
        "php": ">=7.4",
        "bacon/bacon-qr-code": "^2.0.2",
        "browner12/helpers": "^3.2",
        "dg/mysql-dump": "^1.5",
        "doctrine/dbal": "^2.11",
        "fzaninotto/faker": "~1.9",
        "graham-campbell/github": "^9.4.0",
        "graylog2/gelf-php": "^1.6",
        "guzzlehttp/guzzle": "^6.5.5",
        "jeremykendall/php-domain-parser": "^5.7",
        "laravel/framework": "^8.0",
        "laravel/helpers": "^1.3",
        "laravel/legacy-factories": "^1.0",
        "laravel/scout": "^8.3",
        "laravel/tinker": "^2.4",
        "laravel/ui": "^3.0",
        "league/csv": "^9.6",
        "mandrill/mandrill": "^1.0",
        "mariuzzo/laravel-js-localization": "^1.7",
        "php-http/guzzle6-adapter": "^2.0.1",
        "phpseclib/phpseclib": "^2.0.29",
        "pragmarx/google2fa": "^8.0",
        "predis/predis": "^1.1",
        "segmentio/analytics-php": "^1.5",
        "spatie/fractalistic": "^2.9",
        "zachleigh/laravel-property-bag": "^1.4"
    },
    "require-dev": {
        "laravel/dusk": "^6.8",
        "mockery/mockery": "1.4.2",
        "phpunit/phpunit": "^9.0",
        "filp/whoops": "~2.7"
    },
    "autoload": {
        // also tried with the classmap here
        "psr-4": {
            "Database\\Seeders\\": "database/seeders/",
            // Also tried with the factories namespace here
        },
        "files": [
            "app/helpers.php"
        ]
    },
    "scripts": {
        "post-root-package-install": [
            "php -r \"file_exists('.env') || copy('.env.example', '.env');\""
        ],
        "post-create-project-cmd": [
            "php artisan key:generate"
        ],
        "post-install-cmd": [
            "Illuminate\\Foundation\\ComposerScripts::postInstall",
            "php artisan optimize"
        ],
        "post-update-cmd": [
            "Illuminate\\Foundation\\ComposerScripts::postUpdate",
            "php artisan optimize"
        ],
        "post-autoload-dump": [
            "Illuminate\\Foundation\\ComposerScripts::postAutoloadDump",
            "@php artisan package:discover"
        ]
    },
    "config": {
        "preferred-install": "dist",
        "sort-packages": true,
        "optimize-autoloader": true
    },
    "extra": {
        "laravel": {
            "dont-discover": [
                "laravel/dusk"
            ]
        }
    }
}

Answer 1

最后我设法通过简单地删除 packages.php 解决了这个问题。和 services.php bootstrap 目录中的文件，然后 composer dump-autoload成功了。