TS7026

error TS7026: JSX element implicitly has type ‘any’ because no interface ‘JSX.IntrinsicElements’ exists.

Broken Code ❌

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function App() {
  return <p>My App!</p>;
}

export default App;

Fixed Code ✔️

The global JSX namespace is declared in @types/react. You have to install the @types/react package to make use of it:

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yarn add --dev @types/react