SyntaxError: Unexpected token '<' in react js

Question

import React from "react";
import ReactDOM from "react-dom";
import App from "./components/App.js";
import { BrowserRouter } from "react-router-dom";
import { BabelFile } from "@babel/core";


ReactDOM.render(
  <React.StrictMode>
    <BrowserRouter>
    <App/>
    </BrowserRouter>
  </React.StrictMode>,
  document.getElementById("root")
);

i keep getting error on react and cant use "<" in whatever code i wrote