Error while working with React?

Question

React

I'm training with React. Gives an error message

Failed to compile
src\components\app\app.js
Line 5:8: 'TopComponent' is not defined react/jsx-no-undef

Search for the keywords to learn more about each error.
This error occurred during the build time and cannot be dismissed.

What could be the problem?

Answer 1

You are not importing the component in App.js

Answer 2

Line 5:8: 'TopComponent' is not defined react/jsx-no-undef

What is written here? Translated?

https://developer.mozilla.org/en-US/docs/Web/JavaS...