Error "React refers to a UMD global" in TypeScript with React
Hi everyone! I'm new to TypeScript and React. I created a project using create-react-app with the TypeScript template, but when trying to write a simple component, I encountered a strange error.
Here's my code (App.tsx file):
```tsx
import React from 'react';
import ReactDOM from 'react-dom';
const App: React.FC = () => {
return , document.getElementById('root'));
```
TypeScript gives an error on the line with `import React from 'react'`:
"'React' refers to a UMD global, but the current file is a module. Consider adding an import instead."
I'm confused. It seems like I'm already using import, but the compiler says I need to add an import. I tried reinstalling dependencies, deleting node_modules and package-lock.json — it didn't help. I'm us