node.js - 安装时出现 NPM 错误

Question

安装 npm 时出现以下错误:

npm WARN worker-loader@0.8.1 requires a peer of webpack@>=0.9 <2 || ^2.1.0-beta || ^2.2.0 but none was installed.

npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@1.1.2 (node_modules\fsevents):

npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@1.1.2: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"})**

这是我的package.json:

{
    "private": true,
    "scripts": {
        "dev": "npm run development",
        "development": "cross-env NODE_ENV=development node_modules/webpack/bin/webpack.js --progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js",
        "watch": "cross-env NODE_ENV=development node_modules/webpack/bin/webpack.js --watch --progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js",
        "watch-poll": "npm run watch -- --watch-poll",
        "hot": "cross-env NODE_ENV=development node_modules/webpack-dev-server/bin/webpack-dev-server.js --inline --hot --config=node_modules/laravel-mix/setup/webpack.config.js",
        "prod": "npm run production",
        "production": "cross-env NODE_ENV=production node_modules/webpack/bin/webpack.js --progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js"
    },
    "devDependencies": 
    {
        "axios": "^0.16.2",
        "bootstrap-sass": "^3.3.7",
        "cross-env": "^5.0.1",
        "jquery": "^3.1.1",
        "laravel-mix": "^1.0",
        "lodash": "^4.17.4",
        "vue": "^2.1.10"
    },
    "dependencies": {
        "latest-version": "^3.1.0",
        "pdfjs-dist": "^1.9.528"
    }
}

版本:Windows 10，Node v8.4.0，Npm 5.3.0，Laravel:4.4。

Answer 1

首先，这些只是警告，不是错误 - 你没有破坏任何东西!

也就是说，这是他们背后的原因。

• 第一个警告是告诉您 worker-loader 希望 Webpack 2 与其一起安装。 Laravel Mix 使用 Webpack 3，所以你会收到警告。也就是说，它不会给您带来任何问题 - worker-loader 支持 Webpack 3，they just haven't updated the peer dependency to reflect that yet .
• 其他警告非常常见 - 它们只是告诉您 fsevents 库无法安装在您的 Windows 上，该库是许多软件包的仅限 Mac 的可选依赖项机。