Sorry you’re running into trouble here. Unfortunately, I wasn’t able to reproduce this error locally. In my attempt to reproduce, I started from scratch, copied your code in, then installed @zendeskgarden/react-dropdowns and it’s required dependencies: styled-components & @zendeskgarden/react-theming.
If you’re still running into this issue, could you share the error that’s occurring (it should be the line above what you screenshotted in your message). It also might be helpful to see your package.json for debugging purposes.