我启动了nodejs服务器，它呈现了一个空白页面，但我可以在chrome inspector中看到它是从我的react build中呈现我的index.html，但是在标签<div id='root'></div>中什么也没有。
在检查器控制台中，我遇到了这个问题
Uncaught SyntaxError: Unexpected token < main.a3362a52.chunk.js:1
Uncaught SyntaxError: Unexpected token < index.bundle.js:1
所以我想由于这个错误我无法渲染我的组件/
通过搜索，我发现了两种探索的可能性。
首先，我尝试解决此语法错误问题，但发现babel可能存在问题，因此我尝试用index.html来写
它消除了关于index.bundle.js的语法错误，但由于它是由我的react build生成的，因此块中的另一个仍然在这里。
然后，我尝试查看路由器是否存在问题，因此我在index.js中输入了
ReactDOM.render（test，document.getElementById（'root'））;
但是这个div没有渲染，所以我想这不是路由器问题。
我的index.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<link rel="shortcut icon" href="%PUBLIC_URL%/favicon.ico">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<meta name="theme-color" content="#000000">
<link href="https://fonts.googleapis.com/css?family=Nunito" rel="stylesheet">
<link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Roboto:300,400,500">
<link rel="stylesheet" href="https://fonts.googleapis.com/icon?family=Material+Icons">
<!--
manifest.json provides metadata used when your web app is added to the
homescreen on Android. See https://developers.google.com/web/fundamentals/web-app-manifest/
-->
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css" integrity="sha384-MCw98/SFnGE8fJT3GXwEOngsV7Zt27NXFoaoApmYm81iuXoPkFOJwJ8ERdknLPMO" crossorigin="anonymous">
<link rel="manifest" href="%PUBLIC_URL%/manifest.json">
<!--
Notice the use of %PUBLIC_URL% in the tags above.
It will be replaced with the URL of the `public` folder during the build.
Only files inside the `public` folder can be referenced from the HTML.
Unlike "/favicon.ico" or "favicon.ico", "%PUBLIC_URL%/favicon.ico" will
work correctly both with client-side routing and a non-root public URL.
Learn how to configure a non-root public URL by running `npm run build`.
-->
<title>my app</title>
</head>
<body>
<noscript>
You need to enable JavaScript to run this app.
</noscript>
<div id="root"></div>
<!--
This HTML file is a template.
If you open it directly in the browser, you will see an empty page.
You can add webfonts, meta tags, or analytics to this file.
The build step will place the bundled scripts into the <body> tag.
To begin the development, run `npm start` or `yarn start`.
To create a production bundle, use `npm run build` or `yarn build`.
-->
</body>
<script src="index.bundle.js" type = "text/jsx">
</script>
</html>
我的index.js：
import React from 'react';
import ReactDOM from 'react-dom';
import './index.css';
import App from './App';
import { BrowserRouter } from 'react-router-dom';
ReactDOM.render(
<BrowserRouter basename='/'>
<App />
</BrowserRouter>,
document.getElementById('root'));
我的.babelrc
{
"presets": [
"@babel/preset-env",
"@babel/preset-react",
],
"plugins": [
[
"@babel/plugin-proposal-class-properties"],
["react-intl",
{
"messagesDir": "./public/messages/"
}
]
]
}
和我的webpack.config.js
const webpack = require('webpack');
const path = require('path');
const config = {
entry: './src/index.js',
output: {
path: path.resolve(__dirname, 'build'),
filename: 'index.bundle.js'
},
module: {
rules: [
{
test: /\.(js|jsx)$/,
use: 'babel-loader',
exclude: /node_modules/,
},
{
test: /\.scss$/,
use: [
'style-loader',
'css-loader',
'sass-loader'
]
},
{
test: /\.svg$/,
use: 'file-loader'
},
{
test: /\.png$/,
use: [
{
loader: 'url-loader',
options: {
mimetype: 'image/png'
}
}
]
}
]
},
resolve: {
extensions: [
'.js',
'.jsx'
]
},
devServer: {
contentBase: './build'
}
}
console.log(path.resolve(__dirname, 'build'));
module.exports = config;
所以我认为问题来自于通天塔，但我不知道如何解决，您有什么想法或其他方法可以探索来解决我的问题？
谢谢
编辑
package.json
{
"name": "my app",
"version": "0.1.0",
"license": "None",
"private": true,
"config": {
"mongoDir": "/usr/local"
},
"dependencies": {
"@babel/cli": "^7.0.0",
"@babel/core": "^7.1.6",
"@babel/preset-env": "^7.1.6",
"@babel/preset-react": "^7.0.0",
"@material-ui/core": "^3.5.1",
"@material-ui/icons": "^3.0.1",
"@svgr/webpack": "2.4.1",
"awesome-typescript-loader": "^5.2.1",
"axios": "^0.18.0",
"b64-to-blob": "1.2.19",
"babel-eslint": "9.0.0",
"babel-loader": "^8.0.4",
"babel-plugin-named-asset-import": "^0.2.3",
"babel-plugin-react-intl": "^3.0.1",
"babel-preset-react-app": "^6.1.0",
"bfj": "6.1.1",
"bootstrap": "^4.1.2",
"bootstrap-select": "1.13.2",
"case-sensitive-paths-webpack-plugin": "2.1.2",
"chalk": "2.4.1",
"classnames": "^2.2.6",
"clean-webpack-plugin": "^1.0.0",
"core-js": "2.5.7",
"cors": "2.8.4",
"country-select-js": "2.0.1",
"domino": "2.1.0",
"dotenv-expand": "4.2.0",
"eslint": "5.6.0",
"eslint-config-react-app": "^3.0.5",
"eslint-loader": "2.1.1",
"eslint-plugin-flowtype": "2.50.1",
"eslint-plugin-import": "2.14.0",
"eslint-plugin-jsx-a11y": "6.1.2",
"eslint-plugin-react": "7.11.1",
"express": "4.16.3",
"express-session": "1.15.6",
"font-awesome": "4.7.0",
"fork-ts-checker-webpack-plugin-alt": "0.4.14",
"fs-extra": "7.0.0",
"hammerjs": "2.0.8",
"html-webpack-plugin": "4.0.0-alpha.2",
"i18n-iso-countries": "3.7.8",
"i18next": "^12.1.0",
"identity-obj-proxy": "3.0.0",
"jest-pnp-resolver": "1.0.1",
"jest-resolve": "23.6.0",
"jquery": "3.3.1",
"js-string-compression": "1.0.1",
"jwt-decode": "^2.2.0",
"lodash": "4.17.11",
"mini-css-extract-plugin": "0.4.3",
"optimize-css-assets-webpack-plugin": "5.0.1",
"pnp-webpack-plugin": "1.1.0",
"popper.js": "1.14.3",
"postcss-flexbugs-fixes": "4.1.0",
"postcss-loader": "3.0.0",
"postcss-preset-env": "6.0.6",
"postcss-safe-parser": "4.0.1",
"react": "^16.6.3",
"react-app-polyfill": "^0.1.3",
"react-cookie": "^3.0.8",
"react-country-region-selector": "^1.4.3",
"react-dev-utils": "^6.1.1",
"react-dom": "^16.6.3",
"react-facebook-login": "^4.1.1",
"react-flags-select": "^1.1.9",
"react-google-login": "^4.0.0",
"react-hot-loader": "^4.3.12",
"react-i18next": "^8.3.8",
"react-intl": "^2.7.2",
"react-phone-input-2": "^2.7.0",
"react-redux": "^6.0.0",
"react-router": "^4.3.1",
"react-router-dom": "^4.3.1",
"react-sidebar": "^3.0.2",
"react-youtube": "^7.8.0",
"redux": "^4.0.1",
"redux-thunk": "^2.3.0",
"resolve": "1.8.1",
"rxjs": "6.2.2",
"simple-line-icons": "2.4.1",
"terser-webpack-plugin": "1.1.0",
"ts-loader": "4.4.2",
"ts-node": "7.0.0",
"webpack-manifest-plugin": "2.0.4",
"workbox-webpack-plugin": "3.6.3",
"youtube-player": "5.5.1",
"zone.js": "0.8.26"
},
"devDependencies": {
"@babel/core": "^7.1.6",
"@babel/node": "^7.0.0",
"@babel/plugin-proposal-class-properties": "^7.1.0",
"@babel/preset-env": "^7.1.6",
"@babel/preset-react": "^7.0.0",
"@types/compression": "0.0.36",
"@types/cors": "2.8.4",
"@types/jasmine": "2.8.8",
"@types/jasminewd2": "2.0.3",
"@types/jquery": "3.3.10",
"@types/lodash": "4.14.116",
"@types/node": "8.10.20",
"babel-loader": "^8.0.4",
"babel-plugin-transform-react-jsx": "^6.24.1",
"codelyzer": "4.4.2",
"css-loader": "^1.0.0",
"dotenv": "^6.0.0",
"file-loader": "^2.0.0",
"jasmine-core": "3.1.0",
"jasmine-spec-reporter": "4.2.1",
"karma": "2.0.4",
"karma-chrome-launcher": "2.2.0",
"karma-cli": "1.0.1",
"karma-coverage-istanbul-reporter": "2.0.1",
"karma-jasmine": "1.1.2",
"karma-jasmine-html-reporter": "1.2.0",
"node-sass": "^4.10.0",
"protractor": "5.3.2",
"sass-loader": "^7.1.0",
"style-loader": "^0.23.0",
"ts-node": "7.0.0",
"tslint": "5.10.0",
"typescript": "2.7.2",
"url-loader": "^1.1.1",
"webpack": "^4.19.1",
"webpack-cli": "^3.1.2",
"webpack-dev-server": "^3.1.9"
},
"scripts": {
"start": "node scripts/start.js",
"build": "npm run clean && npm run build:langs && node scripts/build.js && npm run compile ",
"test": "node scripts/test.js --env=jsdom",
"clean": "rm -rf ./build/index.bundle.js",
"compile": "NODE_ENV=production webpack --config ./webpack.config.js --progress --colors",
"build:langs": "NODE_ENV='production' babel-node scripts/mergeMessages.js"
},
"proxy": "http://localhost:5000/",
"engines": {
"node": "~8.11.3",
"npm": "~5.6.0"
},
"eslintConfig": {
"extends": "react-app"
},
"browserslist": [
">0.2%",
"not dead",
"not ie <= 11",
"not op_mini all"
],
"jest": {
"collectCoverageFrom": [
"src/**/*.{js,jsx,ts,tsx}",
"!src/**/*.d.ts"
],
"resolver": "jest-pnp-resolver",
"setupFiles": [
"react-app-polyfill/jsdom"
],
"testMatch": [
"<rootDir>/src/**/__tests__/**/*.{js,jsx,ts,tsx}",
"<rootDir>/src/**/?(*.)(spec|test).{js,jsx,ts,tsx}"
],
"testEnvironment": "jsdom",
"testURL": "http://localhost",
"transform": {
"^.+\\.(js|jsx|ts|tsx)$": "<rootDir>/node_modules/babel-jest",
"^.+\\.css$": "<rootDir>/config/jest/cssTransform.js",
"^(?!.*\\.(js|jsx|ts|tsx|css|json)$)": "<rootDir>/config/jest/fileTransform.js"
},
"transformIgnorePatterns": [
"[/\\\\]node_modules[/\\\\].+\\.(js|jsx|ts|tsx)$",
"^.+\\.module\\.(css|sass|scss)$"
],
"moduleNameMapper": {
"^react-native$": "react-native-web",
"^.+\\.module\\.(css|sass|scss)$": "identity-obj-proxy"
},
"moduleFileExtensions": [
"web.js",
"js",
"web.ts",
"ts",
"web.tsx",
"tsx",
"json",
"web.jsx",
"jsx",
"node"
]
}
}