redis-gui: Error: Unexpected method 'appcast' called on Cask redis-gui.

[seawolf]

Verification

• I understand that if I ignore these instructions, my issue may be closed without review.
• I have retried my command with --force.
• I ran brew update-reset && brew update and retried my command.
• I ran brew doctor, fixed as many issues as possible and retried my command.
• I have checked the instructions for reporting bugs.
• I made doubly sure this is not a checksum does not match / SHA256 mismatch error (do not open an issue before trying to open a PR to fix first).

Description of issue

Hello 👋

Whenever I run many brew commands, I see this message:

Error: Unexpected method 'appcast' called on Cask redis-gui.

The application itself appears to run okay.

I imagine this is a problem with the app's installation scripts rather than Homebrew itself, but I figured I'd leave it to the professionals!

Many thanks for your efforts 🙂

Command that failed

brew upgrade redis-gui

Output of command with --verbose --debug

/usr/local/Homebrew/Library/Homebrew/brew.rb (Formulary::NullLoader): loading redis-gui
/usr/local/Homebrew/Library/Homebrew/brew.rb (Formulary::NullLoader): loading redis-gui
/usr/local/Homebrew/Library/Homebrew/brew.rb (Formulary::NullLoader): loading redis-gui
/usr/local/Homebrew/Library/Homebrew/brew.rb (Cask::CaskLoader::FromNameLoader): loading redis-gui
Error: Unexpected method 'appcast' called on Cask redis-gui.
Follow the instructions here:
  https://github.com/Homebrew/homebrew-cask#reporting-bugs
Warning: Not upgrading redis-gui, the latest version is already installed

Output of brew doctor and brew config

HOMEBREW_VERSION: 4.3.6
ORIGIN: https://github.com/Homebrew/brew
HEAD: e8430b25a1d1321f32e5093d62b57b5cb7cfb3c3
Last commit: 8 days ago
Core tap JSON: 24 Jun 08:11 UTC
Core cask tap JSON: 24 Jun 08:11 UTC
HOMEBREW_PREFIX: /usr/local
HOMEBREW_CASK_OPTS: []
HOMEBREW_DISPLAY: /private/tmp/com.apple.launchd.HMbURRNHlo/org.xquartz:0
HOMEBREW_MAKE_JOBS: 12
HOMEBREW_NO_ENV_HINTS: set
Homebrew Ruby: 3.3.3 => /usr/local/Homebrew/Library/Homebrew/vendor/portable-ruby/3.3.3/bin/ruby
CPU: dodeca-core 64-bit kabylake
Clang: 15.0.0 build 1500
Git: 2.45.2 => /usr/local/bin/git
Curl: 8.6.0 => /usr/bin/curl
macOS: 14.5-x86_64
CLT: 15.3.0.0.1.1708646388
Xcode: 15.4

----------

Error: Unexpected method 'appcast' called on Cask redis-gui.
Follow the instructions here:
  https://github.com/Homebrew/homebrew-cask#reporting-bugs
Error: Unexpected method 'appcast' called on Cask redis-gui.
Follow the instructions here:
  https://github.com/Homebrew/homebrew-cask#reporting-bugs
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 or file an issue; just ignore this. Thanks!

Output of brew tap

ekvedaras/cask
gromgit/fuse
ngrok/ngrok

[seawolf]

Of course, as soon as I open this issue I see #173201 ...

I edited the cask (brew edit --cask redis-gui) and commented out the appcast line.