"No single root directory found, all dists must extract to a single directory" error when trying to upload module to zef via App::Mi6

Question

Getting a weird error I've never seen before while trying to upload a new module to zef using the App::Mi6 mi6 release command:

==> Step 9. UploadToZef
Are you sure you want to upload Directory-0.0.1.tar.gz to Zef ecosystem? (y/N) y
Executing /Users/steve/.rakubrew/versions/moar-2022.12/bin/rakudo -e use Fez::CLI --file=Directory-0.0.1.tar.gz upload
>>= Looking in "Directory-0.0.1.tar.gz" for META6.json
=<< No single root directory found, all dists must extract to a single directory
Failed
  in method upload at /Users/steve/.rakubrew/versions/moar-2022.12/share/perl6/site/sources/12D2D4FC78FDF40E8B7DEC72AF31ECED31A67D08 (App::Mi6::Fez) line 19
  in method run at /Users/steve/.rakubrew/versions/moar-2022.12/share/perl6/site/sources/A4949DB54562D3B5154DD447B5CC2C730F09B0E5 (App::Mi6::Release::UploadToZef) line 24
  in method run at /Users/steve/.rakubrew/versions/moar-2022.12/share/perl6/site/sources/BDF7095037EE976677901A8557FD533DCDC6FD65 (App::Mi6::Release) line 49
  in method cmd at /Users/steve/.rakubrew/versions/moar-2022.12/share/perl6/site/sources/299DED9746B9228495A0B5E829FE0A6BBD7DFE88 (App::Mi6) line 162
  in sub MAIN at /Users/steve/.rakubrew/versions/moar-2022.12/share/perl6/site/resources/5831540356728593B89C55370F0C33F8DD0813F5 line 20
  in block <unit> at /Users/steve/.rakubrew/versions/moar-2022.12/share/perl6/site/resources/5831540356728593B89C55370F0C33F8DD0813F5 line 5
  in sub MAIN at /Users/steve/.rakubrew/versions/moar-2022.12/share/perl6/site/bin/mi6 line 3
  in block <unit> at /Users/steve/.rakubrew/versions/moar-2022.12/share/perl6/site/bin/mi6 line 1

Google turns up nothing on this error. This means I've found a major bug or the three glasses of wine I've had tonight have me doing something really stupid. :)

Answer 1

OK, this is a bug related to how the fez module interacts with how tarballs are generated on a mac.

A pull request has been made to address this issue: https://github.com/tony-o/raku-fez/pull/74.

I'm not sure what accounts for things working on 2022.07 and not 2022.12 version of raku.