Line 44:10: 'MapContainer' is not defined react/jsx-no-undef Line 45:4: 'TileLayer' is not defined react/jsx-no-undef Line 49:4: 'Marker' is not defined react/jsx-no-undef Line 50:6: 'Popup' is not defined code example

// 'App' is not defined react/jsx-no-undef
import App from "./App"; //import into index.js file