我正在启动一个 React 应用程序,这是我的 Webpack 配置:
'use strict'
const ExtractPlugin = require('extract-text-webpack-plugin')
const HTMLPlugin = require('html-webpack-plugin')
module.exports = {
    devtool: 'eval',
    entry: `${__dirname}/src/main.js`,
    output: {
        filename: 'bundle-[hash].js',
        path: `${__dirname}/build`,
        publicPath: '/',
    },
    mode: 'development',
    performance: {
        hints: false
    },
    plugins: [
        new HTMLPlugin(),
        new ExtractPlugin('bundle-[hash].css'),
    ],
    module: {
        rules: [
            {
                test: /\.js$/,
                exclude: /node_module/,
                loader: 'babel-loader',
            },
            {
                test: /\.scss$/,
                loader: ExtractPlugin.extract(['css-loader', 'sass-loader']),
            },
        ],
    },
}
然后,我有一个 package.json 文件,这里是依赖项:
"devDependencies": {
    "@babel/core": "^7.1.6",
    "@babel/plugin-proposal-object-rest-spread": "^7.0.0",
    "@babel/preset-env": "^7.1.6",
    "@babel/preset-react": "^7.0.0",
    "and": "0.0.3",
    "babel-cli": "^6.26.0",
    "babel-core": "^7.0.0-bridge.0",
    "babel-loader": "^8.0.4",
    "eslint": "^5.9.0",
    "install": "^0.12.2",
    "jest": "^23.6.0",
    "npm": "^6.4.1",
    "webpack-cli": "^3.1.2"
  },
  "dependencies": {
    "babel-plugin-transform-object-rest-spread": "^6.26.0",
    "babel-plugin-transform-runtime": "^6.23.0",
    "babel-preset-env": "^1.7.0",
    "css-loader": "^1.0.1",
    "extract-text-webpack-plugin": "^4.0.0-beta.0",
    "html-webpack-plugin": "^3.2.0",
    "node-sass": "^4.11.0",
    "react": "^16.6.3",
    "react-dom": "^16.6.3",
    "resolve-url-loader": "^3.0.0",
    "sass-loader": "^7.1.0",
    "webpack": "^4.25.1",
    "webpack-dev-server": "^3.1.10"
  } 
我已经尝试了很多方法将 babel 包更新到第 7 版,更改 babelrc 配置,无论如何。
该项目虽然编译,但在编译开始时我收到以下消息:
跟踪:节点类型 SpreadProperty 已在 Object.isSpreadProperty 处重命名为 SpreadElement
大约有一百行这样的。在打印出所有这些行之后,编译过程继续并成功完成。
那是什么,我怎样才能摆脱这些行?