这是有问题的分支和存储库：https://github.com/Futuratum/moon.holdings/tree/dev
/Users/leongaban/projects/Futuratum/moon.holdings/node_modules/webpack-cli/bin/config-yargs.js：89 描述： 选项架构.定义.输出.属性.路径.描述，
不知道为什么我会收到此错误，但我从 Webpack 3 升级到 4。
网络包
/* eslint-disable no-console */
import webpack from 'webpack';
import HtmlWebpackPlugin from 'html-webpack-plugin';
import ExtractTextPlugin from 'extract-text-webpack-plugin';
import CopyWebpackPlugin from 'copy-webpack-plugin';
import path from 'path';
const moonholdings = path.resolve(__dirname, 'moonholdings');
const app = path.resolve(__dirname, 'app');
const nodeModules = path.resolve(__dirname, 'node_modules');
const HtmlWebpackPluginConfig = new HtmlWebpackPlugin({
template: path.join(__dirname, '/app/index.html'),
inject: 'body'
});
const ExtractTextPluginConfig = new ExtractTextPlugin({
filename: 'moonholdings.css',
disable: false,
allChunks: true
});
const CopyWebpackPluginConfigOptions = [{
from: 'app/static',
to: 'static/'
}];
const CopyWebpackPluginConfig = new CopyWebpackPlugin(CopyWebpackPluginConfigOptions);
const PATHS = {
app,
build: moonholdings
};
const LAUNCH_COMMAND = process.env.npm_lifecycle_event;
const isProduction = LAUNCH_COMMAND === 'production';
process.env.BABEL_ENV = LAUNCH_COMMAND;
const productionPlugin = new webpack.DefinePlugin({
'process.env': {
NODE_ENV: JSON.stringify('production')
}
});
const base = {
entry: ['babel-polyfill', PATHS.app],
performance: {
hints: false,
maxAssetSize: 1000000
},
output: {
path: PATHS.build,
publicPath: '/',
filename: 'index_bundle.js'
},
resolve: {
modules: [app, nodeModules]
},
module: {
rules: [
{
test: /.js$/,
loader: 'babel-loader',
exclude: /node_modules/
},
{
test: /.s?css/,
use: [
'style-loader',
'css-loader',
'sass-loader'
]
},
{
test: /.(png|jpg|jpeg|gif|svg|woff|woff2|ttf|eot)/,
loader: 'file-loader?name=[path][name].[ext]'
}
]
}
};
const developmentConfig = {
devtool: 'inline-source-map',
devServer: {
contentBase: moonholdings
},
plugins: [
CopyWebpackPluginConfig,
ExtractTextPluginConfig,
HtmlWebpackPluginConfig
]
};
const productionConfig = {
devtool: false,
plugins: [
CopyWebpackPluginConfig,
ExtractTextPluginConfig,
HtmlWebpackPluginConfig,
productionPlugin
]
};
export default Object.assign(
{}, base,
isProduction === true ? productionConfig : developmentConfig
);
包.json
{
"name": "moon.holdings",
"version": "1.0.0",
"description": "Cryptocurrency asset portfolio",
"main": "index.js",
"repository": "https://github.com/Futuratum/moon.holdings.git",
"author": "Leon Gaban <leongaban@gmail.com>",
"license": "MIT",
"scripts": {
"start": "webpack && webpack-dev-server",
"webpack": "webpack-dev-server",
"dev": "webpack-dev-server",
"build": "webpack -p",
"production": "webpack -p",
"test": "yarn run test-eslint; yarn run test-jest:update",
"test-eslint": "eslint app",
"test-eslint:fix": "eslint --fix app",
"test-sasslint": "./node_modules/.bin/sass-lint 'app/**/*.scss' -v -q",
"test-jest": "jest",
"test-jest:watch": "jest --watch",
"test-jest:coverage": "jest --coverage",
"test-jest:update": "jest --updateSnapshot"
},
"setupFiles": [
"<rootDir>/config/polyfills.js",
"<rootDir>/src/setupTests.js"
],
"now": {
"name": "moonholdings",
"alias": "moon.holdings"
},
"jest": {
"moduleNameMapper": {},
"moduleFileExtensions": [
"js",
"jsx"
],
"moduleDirectories": [
"node_modules",
"app"
],
"setupTestFrameworkScriptFile": "./app/utils/testConfigure.js"
},
"dependencies": {
"axios": "^0.18.0",
"babel-cli": "^6.26.0",
"babel-core": "^6.26.0",
"babel-eslint": "^8.2.2",
"babel-loader": "^7.1.4",
"babel-plugin-transform-async-to-generator": "^6.24.1",
"babel-plugin-transform-es2015-destructuring": "^6.23.0",
"babel-plugin-transform-es2015-modules-commonjs": "^6.26.0",
"babel-plugin-transform-object-rest-spread": "^6.26.0",
"babel-plugin-transform-runtime": "^6.23.0",
"babel-polyfill": "^6.26.0",
"babel-preset-env": "^1.6.1",
"babel-preset-es2015": "^6.24.1",
"babel-preset-react": "^6.24.1",
"babel-preset-react-hmre": "^1.1.1",
"babel-preset-stage-0": "^6.24.1",
"babel-register": "^6.26.0",
"copy-webpack-plugin": "^4.5.0",
"css-loader": "^0.28.10",
"enzyme": "^3.3.0",
"enzyme-adapter-react-16": "^1.1.1",
"enzyme-to-json": "^3.3.1",
"eslint": "^4.18.2",
"eslint-config-airbnb": "^16.1.0",
"eslint-import-resolver-node": "^0.3.2",
"eslint-plugin-dependencies": "^2.4.0",
"eslint-plugin-import": "^2.9.0",
"eslint-plugin-jsx-a11y": "^6.0.3",
"eslint-plugin-react": "^7.7.0",
"extract-text-webpack-plugin": "^3.0.2",
"file-loader": "^1.1.11",
"flexboxgrid": "^6.3.1",
"git-hooks": "^1.1.10",
"history": "^4.7.2",
"html-webpack-plugin": "^3.0.6",
"jest": "^22.4.2",
"lodash": "^4.17.10",
"node-sass": "^4.7.2",
"path-to-regexp": "^2.2.0",
"ramda": "^0.25.0",
"react": "^16.2.0",
"react-dom": "^16.2.0",
"react-hot-loader": "^4.0.0",
"react-redux": "^5.0.7",
"react-router": "^4.2.0",
"react-router-dom": "^4.2.2",
"react-router-redux": "^4.0.8",
"react-sortable-hoc": "^0.6.8",
"react-test-renderer": "^16.3.2",
"redux": "^3.7.2",
"redux-mock-store": "^1.5.1",
"redux-thunk": "^2.2.0",
"rest": "^2.0.0",
"sass-lint": "^1.12.1",
"sass-loader": "^6.0.7",
"style-loader": "^0.20.2",
"svg-inline-loader": "^0.8.0",
"svg-loader": "^0.0.2",
"url-loader": "^1.0.1",
"webpack": "^4.20.2",
"webpack-cli": "^2.0.10",
"webpack-dev-server": "2.11.1"
}
}
如果在更新 npm 包后发生，则删除并重新安装 webpack webpack-clinpm remove webpack webpack-clinpm install --save-dev webpack webpack-cli
我建议您在执行任何操作之前升级/更新节点。
您需要做两件事：
- 删除 webpack@4.20.2 和 webpack-cli@2.0.10 依赖项，并专门安装 webpack@4.19.0 和 webpack-cli@3.0.4 版本。Webpack 4.20.x 发行版有错误。
- 也不要使用
extract-text-webpack-plugin。
extract-text-webpack-plugin不应该与 Webpack 4 一起使用来提取 CSS。它不起作用。相反，请尝试使用：mini-css-extract-plugin。
在这些更改之后，webpack 应该编译您的代码并生成必要的捆绑包。
注意：当我在系统上克隆提到的存储库时，我必须对board.js文件进行更改。我对此导入语句进行了更改：import CoinMarketCap from 'components/Partials/Coinmarketcap/link';这不适用于 Linux 系统，因为路径区分大小写。
它是"webpack-cli"中的^符号："^2.0.10"依赖项，导致次要/补丁版本升级到最新的webpack-cli@2.x.x，它有以下变化。
在 webpack 中进行更改导致问题：(将输出更改为输出选项( 参考： https://github.com/webpack/webpack-cli/pull/605
解决方案：(安装 webpack-cli@3.x.x(
npm 卸载 webpack-cli
npm install --save-dev webpack-cli@3.1.1
参考：解决方案
尝试安装最新的 LTS 版本的 Node 并再次测试。使用最新的 LTS 节点和 npm 对我来说效果很好。
就我而言，我只是忘记在setupMiddlewares函数中返回middlewares数组，如下所示：
devServer: {
setupMiddlewares: (middlewares, devServer) => {
// Smth very important
return middlewares
}
}
迁移到最新版本为我解决了错误：webpack-cli^3.3.11