Laravel: Declaration of AppProvidersEventServiceProvider::

Question

我当前正在更新到Laravel 5.4，并在控制台中遇到以下错误。

声明 App Provister EventerViceProvider :: boot(Illuminate Contract
S Events dispatcher $ events(应与 照明 foundatio
N support 提供者 EventerviceProvider :: boot((

这是我的 composer.json

{
"name": "laravel/laravel",
"description": "The Laravel Framework.",
"keywords": ["framework", "laravel"],
"license": "MIT",
"type": "project",
"require": {
    "php": ">=5.5.9",
    "laravel/framework": "5.4.*",
    "illuminate/html": "5.0.*",
    "laravelcollective/html": "^5.4.0"
},
"require-dev": {
    "fzaninotto/faker": "~1.4",
    "mockery/mockery": "0.9.*",
    "phpunit/phpunit": "~5.7",
    "symfony/css-selector": "2.8.*|3.0.*",
    "symfony/dom-crawler": "2.8.*|3.0.*"
},
"autoload": {
    "classmap": [
        "database"
    ],
    "psr-4": {
        "App\": "app/"
    }
},
"autoload-dev": {
    "classmap": [
        "tests/TestCase.php"
    ]
},
"scripts": {
    "post-root-package-install": [
        "php -r "copy('.env.example', '.env');""
    ],
    "post-create-project-cmd": [
        "php artisan key:generate"
    ],
    "post-install-cmd": [
        "php artisan clear-compiled",
        "php artisan optimize"
    ],
    "pre-update-cmd": [
        "php artisan clear-compiled"
    ],
    "post-update-cmd": [
        "php artisan optimize"
    ]
},
"config": {
    "preferred-install": "dist"
}
}

Answer 1

您正在更新为5.4，所以有些事情会改变。

启动方法不再需要传递给它的参数，父母也不需要：

从函数和parent::boot()完全删除参数，因此没有任何参数传递给：

public function boot() 
{
    parent::boot();
}

Answer 2

我认为您的应用程序可能正在缓存编译的文件，升级后对我有用的解决方案是重新创建一个新的空目录：

bootstrap/cache

将现有文件夹重命名为不同的温度名称，并创建一个新的目录Bootstrap/Cache并应用权限/所有权，您可以使用。