Laravel 5.8到6.x升级错误-声明App\Exceptions\Handler:：renderHttpException

我最近在项目中将Laravel从5.8.*升级到了6.x版本

现在，当我尝试运行command composer dump autoload-o时，出现以下错误：

Declaration of App\Exceptions\Handler::renderHttpException(Symfony\Component\HttpKernel\Exception\HttpException $e)
   should be compatible with Illuminate\Foundation\Exceptions\Handler::renderHttpException(Symfony\Component\HttpKern
  el\Exception\HttpExceptionInterface $e)

下面是项目中的composer.json集，当我将Laravel从5.7.*升级到5.8.*时，我也遇到了与上面相同的错误，但我进一步升级，希望能够解决这个问题：

{
    "name": "laravel/laravel",
    "description": "The Laravel Framework.",
    "keywords": ["framework", "laravel"],
    "license": "MIT",
    "type": "project",
    "repositories": [
        {
        "type": "composer",
        "url": "https://packages.[company_api].com"
        }
    ],
    "require": {
        "php": ">=7.1.3",
        "basemkhirat/elasticsearch": "^1.3",
        "botman/botman": "^2.5",
        "botman/driver-web": "^1.5",
        "deployer/deployer": "^6.0",
        "fideloper/proxy": "^4.0",
        "guzzlehttp/guzzle": "^6.3",
        "jenssegers/agent": "^2.6",
        "jimmiw/php-time-ago": "^2.0",
        "laravel/framework": "^6.0",
        "laravel/scout": "^8.0",
        "laravel/tinker": "~1.0",
        "[company_name]/wordpressblogapi": "1.4.*"
    },
    "require-dev": {
        "filp/whoops": "~2.0",
        "fzaninotto/faker": "~1.4",
        "mockery/mockery": "0.9.*",
        "phpunit/phpunit": "~7.0"
    },
    "autoload": {
        "classmap": [
            "database/seeds",
            "database/factories"
        ],
        "psr-4": {
            "App\\": "app/"
        },
      "files": [
        "helpers/helpers.php"
      ]
    },
    "autoload-dev": {
        "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"
        ],
        "post-autoload-dump": [
            "Illuminate\\Foundation\\ComposerScripts::postAutoloadDump",
            "@php artisan package:discover"
        ]
    },
    "config": {
        "preferred-install": "dist",
        "sort-packages": true,
        "optimize-autoloader": true
    }
}

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我已经参考了文档，它没有特别提到任何异常或Handler.php文件更改，所以有人建议如何解决这个问题…

这是一个5.7到5.8的升级问题，正如您在问题开始时指出的那样。该方法的签名已更改：

Lightlight\Foundation\Exceptions\Handler类的renderHttpException方法签名已更改。如果要在异常处理程序中重写此方法，则应更新方法签名以匹配其父项：

/**
 * Render the given HttpException.
 *
 * @param  \Symfony\Component\HttpKernel\Exception\HttpExceptionInterface  $e
 * @return \Symfony\Component\HttpFoundation\Response
 */
protected function renderHttpException(HttpExceptionInterface $e);