I'm getting no output in react and getting the previous statements in localhost:3000?

Error: A(...): Nothing was returned from render. This usually means a return statement is missing. Or, to render nothing, return null.
▶ 17 stack frames were collapsed.
./src/index.js
C:/Users/shiva/zeddapp/src/index.js:7
   4 | import App from './App';
   5 | import registerServiceWorker from './registerServiceWorker';
   6 | 
>  7 | ReactDOM.render(<App />, document.getElementById('root'));
   8 | registerServiceWorker();
   9 | 
  10 | 
View compiled
▶ 6 stack frames were collapsed.