React Typescript: Line 0: Parsing error: Cannot read property 'name' of undefined

The problem apparently was caused by a misconfiguration of some (peer?) dependencies of a dependency, react-scripts with the TypeScript template. It went away. Make sure you update your dependencies, purge node_modules, even purge package-lock.json or yarn.lock, and try a fresh build again now.

I case of an app generated by

npx create-react-app my-app --template typescript

More precisely, [email protected]

The issue was solved by running the following command:

rm yarn-lock && rm -rf node_modules && npm i

After which you may run:

either yarn start or npm start

Just update typescript version to 3.8.x : Link