使用react-redux时_react.default.createContext不是函数

Question

将组件添加到入口点时出现问题，此错误立即在此处弹出，该如何解决？我也尝试仅添加Main组件，但无论如何我都会遇到该错误，在main.jsx中，仅带有渲染方法的类返回“
hello world”

_react.default.createContext is not a function



// App.jsx



import React from 'react';

import { render } from 'react-dom';

import { Provider } from 'react-redux';

import { BrowserRouter } from 'react-router-dom';



import 'react-select/dist/react-select.css';



import configureStore from './Data/store/configureStore';

import Main from "./Templates/Main/Main";



const store = configureStore();

render(

    <div>

        <Provider store={store}>

            <BrowserRouter>

                <Main/>

            </BrowserRouter>

        </Provider>

    </div>,

    document.getElementById('app-root')

);

Webpack配置

'use strict';

var path = require('path');
var webpack = require('webpack');
var HtmlWebpackPlugin = require('html-webpack-plugin');

module.exports = {
  devtool: 'eval-source-map',
  entry: [
    'webpack-hot-middleware/client?reload=true',
    path.join(__dirname, 'src/app.jsx')
  ],
  resolve: {
    root: [
      path.resolve(__dirname, "src"),
    ],
    extensions: ['', '.js', '.jsx', '.css']
  },
  output: {
    path: path.join(__dirname, '/public/'),
    filename: '[name].js',
    publicPath: '/'
  },
  plugins: [
    new HtmlWebpackPlugin({
      template: 'src/index.tpl.html',
      inject: 'body',
      filename: 'index.html'
    }),
    new webpack.optimize.OccurenceOrderPlugin(),
    new webpack.HotModuleReplacementPlugin(),
    new webpack.NoErrorsPlugin(),
    new webpack.DefinePlugin({
      'process.env.NODE_ENV': JSON.stringify('development')
    })
  ],
  module: {
    loaders: [{
      test: /\.jsx?$/,
      exclude: /node_modules/,
      loader: 'babel',
      query: {
        presets: ['es2015', 'react']
      }
    }, {
      test: /\.css$/,
      loader: 'style!css'
    }]
  }
};

和依赖

    "react": "^15.6.2",
    "react-addons-update": "^15.6.2",
    "react-bootstrap": "^1.0.0-beta.5",
    "react-dom": "^15.6.2",
    "react-helmet": "^5.2.0",
    "react-redux": "^6.0.0",
    "react-router": "^4.3.1",
    "react-router-dom": "^4.3.1",
    "react-select": "^1.0.0-beta13",
    "redux": "^4.0.1",
    "redux-thunk": "^2.3.0",
    "sequelize": "^3.20.0",
    "sqlite3": "^4.0.6"

Google建议将ract的版本升级到16，但是我认为这不是旧版本的问题。

Answer 1

react-redux v6.0.0使用由反应，以便为它提供工作新环境的API， 要么你需要降级react-redux到v5.x.x或
升级react，并react-dom以v16.4以上

如果使用纱线，则可以运行

yarn upgrade react react-dom

否则，您可以运行npm

npm update react react-dom

您也可以在package.json中手动更改版本，然后运行yarn install或npm install