首現看這個錯誤的名稱,第九行的導入應該在相關導入之前,這行代碼是
import { HashRouter as Router, Switch, Redirect, Route } from 'react-router-dom';
修改方式,將改行代碼放在導入react代碼后面也是第二行:
import React, { Component } from 'react';
import { HashRouter as Router, Switch, Redirect, Route } from 'react-router-dom';
我在這兩行中間添加其他資源,就報這個錯了,無語