nav' is not defined react/jsx-no-undef code example
Example 1: 'Link' is not defined react/jsx-no-undef
import { Link } from 'react-router-dom';
Example 2: 'App' is not defined react/jsx-no-undef
// 'App' is not defined react/jsx-no-undef
import App from "./App"; //import into index.js file