Trace: The node type SpreadProperty has been renamed to SpreadElement at Object.isSpreadProperty

问题

I'm launching a react app, and here's my Webpack configuration:

'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']),
            },
        ],
    },
}

Then, I have a package.json file, here are the dependencies:

"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"
  } 

I have tried plenty of ways of updating babel packages up to 7th version, changing babelrc config, what ever.

The project though compiles, but in the beginning of compilation I get the following message:

Trace: The node type SpreadProperty has been renamed to SpreadElement at Object.isSpreadProperty

And about of hundred rows like that. After all that rows being printed out, the compilation process proceeds and is completed successfully.

What's that and how can I get rid of this rows?

回答1:

here is the final setting that solved problem for me.

.babelrc

{
  "presets": [
    "@babel/preset-env",
    "@babel/preset-react"
  ],
  "plugins": [
    "@babel/plugin-proposal-object-rest-spread"
  ]
}

For a better understanding, here is my package.json's devDependencies:

"devDependencies": {
    "@babel/core": "^7.1.6",
    "@babel/plugin-proposal-object-rest-spread": "^7.0.0",
    "@babel/plugin-transform-object-assign": "^7.0.0",
    "@babel/plugin-transform-react-jsx": "^7.1.6",
    "@babel/preset-env": "^7.1.6",
    "@babel/preset-react": "^7.0.0",
    "babel-loader": "8.0.4",
    "prop-types": "15.6.2",
    "react": "^16.6.3",
    "react-dom": "^16.6.3",
    "style-loader": "^0.23.1",
    "utils": "^0.3.1",
    "webpack": "4.26.1",
    "webpack-cli": "3.1.2",
    "webpack-dev-server": "^3.1.10"
  }

Here is my webpack.config.js module's section:

module: {
        rules: [
            {
                test: /\.(js|jsx)$/ ,
                exclude: /node_modules/,
                loaders: "babel-loader"
            }
        ]
    }

回答2:

This issue is occurring due to using outdated

`"babel-plugin-transform-object-rest-spread"`

update this in package.json

`"@babel/plugin-proposal-object-rest-spread": "^7.0.0",`

and update your .babelrc.js file in my case it looks like this

const isTest = String(process.env.NODE_ENV) === 'test'
module.exports = {
  presets: [["@babel/env", { modules: isTest ? 'commonjs' : false }, "@babel/react"]],
  plugins: [
    'syntax-dynamic-import',
    'transform-class-properties',
    '@babel/plugin-proposal-object-rest-spread',
  ],
}

this solves my problem

回答3:

Before in my .babelrc

i was using the plugin: ["transform-object-rest-spread", { "useBuiltIns": true }],

then i switch it to "@babel/plugin-proposal-object-rest-spread" and all those warnings went away, which has been very nice. `

回答4:

In my case, I was not implementing the Webpack configuration and still error was there. After so many solutions implementation, the error was same or once an error was removed another appeared. Finally, I deleted .bablerc, .babelrc and package-lock.json files and ran rm -rf node_modules && npm install and then ran react-native run-android and it worked for me. :-)

来源：https://stackoverflow.com/questions/53326986/trace-the-node-type-spreadproperty-has-been-renamed-to-spreadelement-at-object