切换到laravel 5.5，我的资源加载停滞

Question

在我以前的laravel应用程序5.2中加载多个资源没有问题。。我刚刚在laravel 5.5中启动了一个新的应用程序。我注意到在加载css和js文件时，这些文件在浏览器中停滞不前。这使得页面加载速度超低。我像往常一样运行php artisan。

有谁知道为什么会这样？

{
"name": "laravel/laravel",
"description": "The Laravel Framework.",
"keywords": ["framework", "laravel"],
"license": "MIT",
"type": "project",
"require": {
    "php": ">=7.0.0",
    "appstract/laravel-bootstrap-components": "^0.2.0",
    "fideloper/proxy": "~3.3",
    "hesto/multi-auth": "^2.0",
    "laravel/framework": "5.5.*",
    "laravel/tinker": "~1.0",
    "yajra/laravel-datatables": "^1.0"
},
"require-dev": {
    "filp/whoops": "~2.0",
    "fzaninotto/faker": "~1.4",
    "mockery/mockery": "0.9.*",
    "phpunit/phpunit": "~6.0"
},
"autoload": {
    "classmap": [
        "database/seeds",
        "database/factories"
    ],
    "psr-4": {
        "App\\": "app/"
    }
},
"autoload-dev": {
    "psr-4": {
        "Tests\\": "tests/"
    }
},
"extra": {
    "laravel": {
        "dont-discover": [
        ]
    }
},
"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
}

}