与阿波罗返回过程的反应未定义



这是我的index.js:

import React from 'react';
import ReactDOM from 'react-dom';
import './index.css';
import App from './components/App';
import * as serviceWorker from './serviceWorker';
import ApolloClient from "apollo-boost";
import { ApolloProvider } from "react-apollo";
ReactDOM.render(
    <App />
, document.getElementById('root'));
serviceWorker.unregister();

但是我得到了:

ReferenceError: process is not defined
eval
node_modules/babel-loader/lib/index.js??ref--6-oneOf-2!/var/www/play-with-grapthql/node_modules/graphql/jsutils/instanceOf.mjs:2

您能告诉我为什么以及如何解决这个问题吗?谢谢!

我潜入指南并发现了我的错误。我安装了:

yarn add react-apollo apollo-boost

,但在指南我必须安装:

yarn add apollo-boost react-apollo graphql

当我添加 graphql-错误消失时。

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