Hey there, let's break down what's going on here and fix this error quickly!

问题根源 #

React Router 4.x underwent a full architecture rewrite—the hashHistory you're looking for is an API from v3 and earlier versions, and it was completely removed in v4. Instead, v4 switched to a component-based routing approach. That's why you can't find it in the v4 @types/react-router definitions, and the v3 folder you saw is just for projects still using the older version.

两种修复方案（推荐第一种） #

1. 改用React Router 4.x的组件式写法（推荐）

For browser-based projects, you should use the react-router-dom package (which depends on react-router). Use the HashRouter component to achieve hash-mode routing, replacing the old hashHistory approach.

First, make sure you have the necessary packages and type definitions installed:

npm install react-router-dom @types/react-router-dom
# Or with yarn
yarn add react-router-dom @types/react-router-dom

Then update your code to import HashRouter from react-router-dom and wrap your routes with it:

import React from 'react';
import ReactDOM from 'react-dom';
import { HashRouter, Route } from 'react-router-dom';
import Home from './Home'; // Your home component

ReactDOM.render(
  <HashRouter>
    <Route path="/" component={Home} />
    {/* Add other route configurations here */}
  </HashRouter>,
  document.getElementById('root')
);

If you want native browser history mode (URLs without the #), just replace HashRouter with BrowserRouter.

2. Roll back to React Router v3 (not recommended)

If you absolutely need to keep using hashHistory for legacy reasons, install the matching v3 versions:

npm install react-router@3.x @types/react-router@3.x
# Or with yarn
yarn add react-router@3.x @types/react-router@3.x

This isn't advised though—v3 is no longer maintained, and v4+'s component-based approach is far more flexible and aligned with React's core principles.

Quick Tip #

React Router 4+ splits its functionality into three packages: react-router (core logic), react-router-dom (browser-specific tools), and react-router-native (for React Native). Always use react-router-dom for browser projects instead of directly using react-router.

内容的提问来源于stack exchange，提问作者David Martin