If you encounter this error, please note that it is not necessarily the end of your code, for example, omitting an accolade may be at the very beginning of your code, even if your file is 1000 lines.

Another 3.0.0-alpha issue, I hope this one makes more sense than my previous one 🙈. So once correctly configured, setup-ocaml itself works perfectly fine on Windows, and we can use the OCaml 5.2.0 ...