On Jul 01 2020, Jeffrey Walton wrote: > $ git checkout m4 Try a newer git version: $ git checkout m4 fatal: 'm4' could be both a local file and a tracking branch. Please use -- (and optionally --no-guess) to disambiguate Andreas. -- Andreas Schwab, schwab@xxxxxxxxxxxxxx GPG Key fingerprint = 7578 EB47 D4E5 4D69 2510 2552 DF73 E780 A9DA AEC1 "And now for something completely different."