Trouble with React SPA Routing - reactjs

Question

I have the following index.js
import React from 'react';
import ReactDOM from 'react-dom';
import {BrowserRouter} from 'react-router-dom';
import Main from './main/main';
import './index.css';
ReactDOM.render(
<BrowserRouter><Main /></BrowserRouter>,document.getElementById('root'));
the following in main.js:
import React, { Component } from 'react';
import NavMenu from "./navmenu";
import Content from "./content";
import './main.css';
class Main extends Component {
render() {
return (
<div id="main-layout">
<div id="main-header">
<div><img src={(require("./images/ppslogo-small.png"))} alt="eeeee"/></div>
<div><h2>Lil Test By Me</h2></div>
</div>
<div id="main-content">
<NavMenu />
<Content />
</div>
<div id="main-footer">
<div>Copyright © 2020. Powered By me. All Rights Reserved.</div>
</div>
</div>
);
}
}
export default Main;
And The following in content.js
import React, { Component } from 'react';
import {Route, Switch} from 'react-dom';
import Dashboard from "../dashboard/dashboard";
import Invoicing from "../invoicing/invoicing";
class Content extends Component {
render() {
return(
<Switch>
<Route exact path="/Dashboard" component={Dashboard} />
<Route path="/Invoicing" component={Invoicing} />
</Switch>
)
}
};
export default Content
It it my attempt to create an SPA with the Content component as my target for all my subsequent pages; however, I am clearly doing something wrong as I am getting all kinds of errors all over the place. Can anyone immediately see what I am doing incorrectly here?

Answer 1

Route and Switch needs to be imported from react-router-dom instead of react-dom
import React, { Component } from 'react';
import {Route, Switch} from 'react-router-dom';
import Dashboard from "../dashboard/dashboard";
import Invoicing from "../invoicing/invoicing";
class Content extends Component {
render() {
return(
<Switch>
<Route exact path="/Dashboard" component={Dashboard} />
<Route path="/Invoicing" component={Invoicing} />
</Switch>
)
}
};
export default Content

Answer 2

Use react-router-dom instead of react-router and then
change your content.js code to this.
import React, { Component } from 'react';
import {Route, Switch, BrowserRouter as Router} from 'react-router-dom';
import Dashboard from "../dashboard/dashboard";
import Invoicing from "../invoicing/invoicing";
class Content extends Component {
render() {
return(
<Router>
<Switch>
<Route exact path="/dashboard" component={Dashboard} />
<Route path="/invoicing" component={Invoicing} />
</Switch>
</Router>
)
}
};
export default Content
notice that I have added Router above the switch. and changed react-router to react-router-dom and also transformed the routes to lowercase