Michael

The ERESOLVE error specifically seems to have been caused by [react-testing-library's 12.1.5 release yesterday](https://github.com/testing-library/react-testing-library/releases/tag/v12.1.5), which doesn't support React 18. It looks like there is a [PR already to fix this](https://github.com/facebook/create-react-app/pull/12223/)

As far as I understand, the original issue posted by @elementkz was fixed in create-react-app 5.0.1 ([release](https://github.com/facebook/create-react-app/releases/tag/v5.0.1)) This can probably be closed.