Failed to download resource "brew-cask"

[ericrowan]

I've been using Caskroom for awhile now but ran into an issue today, so I uninstalled it and now cannot seem to reinstall:

$ brew install caskroom/cask/brew-cask
==> Installing brew-cask from caskroom/cask
==> Cloning https://github.com/caskroom/homebrew-cask.git
Updating /Library/Caches/Homebrew/brew-cask--git
fatal: Couldn't find remote ref refs/tags/v0.60.0
Error: Failed to download resource "brew-cask"
Failure while executing: git fetch -q origin

[jawshooah]

Wow, you must have tried that within the 5 minutes between merging #15381 and tagging v0.60.0!

brew update and try again. Then check the caveats 😉

[adidalal]

Additionally, to reinstall, you need to use brew tap caskroom/cask to (re)install now, I believe.

[jawshooah]

You brew tap caskroom/cask if you've never done so before, yeah. Then brew update takes care of the rest forever after.

[ericrowan]

Thanks guys. I will try tomorrow when I'm back at work and post the result here.

[jawshooah]

Actually, even that is no longer necessary. Homebrew now auto-taps us for you when you run brew cask <whatever> (and runs brew install brew-cask, but that should change after Homebrew/legacy-homebrew#46845).

[jawshooah]

@erow80 Just to be clear, I was being cute in my initial comment. There's no need to brew install brew-cask anymore. Just brew tap caskroom/cask as @adityadalal924 said and you'll be good to go.

[ericrowan]

@jawshooah Oh yeah, totally got the joke 👀

[ryankask]

I had an issue this morning when I ran brew update:

$ brew update
Updated Homebrew from 0763b866 to dcb3cf09.
Updated 1 tap (caskroom/cask).
Error: Could not link caskroom/cask manpages to:
  /usr/local/share/man/man1/brew-cask.1

Please delete these files and run `brew tap --repair`.

Then:

$ brew doctor
Please note that these warnings are just used to help the Homebrew maintainers
with debugging if you file an issue. If everything you use Homebrew for is
working fine: please don't worry and just ignore them. Thanks!

Warning: You have external commands with conflicting names.

Found command `brew-cask` in following places:
    /usr/local/bin/brew-cask
    /usr/local/Library/Taps/caskroom/homebrew-cask/cmd/brew-cask.rb

brew tap --repair didn't work. Eventually I just did:

$ brew untap caskroom/cask
$ brew rm brew-cask
$ brew tap caskroom/Cask

And everything seems fine now

[jawshooah]

@ryankask points out an issue that @DomT4 previously brought up in #15381 (comment).

The easiest way to get around this is to brew uninstall --force brew-cask; brew update. @vitorgalvao, @adityadalal924, should we add a section to the README on upgrading from legacy versions?

[ryankask]

Thanks for the quick response.

I first checked the issues and saw this one listed first. Had I read the changelog I wouldn't have had the issue.

[vitorgalvao]

@vitorgalvao, @adityadalal924, should we add a section to the README on upgrading from legacy versions?

We should, yes. At the moment, that is even more important than the “going away from linking” part.

[ericrowan]

brew update resolved my original issue. Thanks.