I am getting an error that says **Nothing was returned from render**. My code is given below

My code is given below and when I render I get a error saying that Nothing was returned from render and asks me to add a return statement but I don’t have any function to add return statement. So I don’t understand where to add a return statement.

    import reportWebVitals from './reportWebVitals';
    
>   ReactDOM.render(
     <React.StrictMode>
       <App />
    </React.StrictMode>,```