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#311867·homebrew-core

Mole Formula fails checksum verification

Author: scottfurryCreated Sep 17, 2026Updated Sep 18, 2026

brew config AND brew doctor output OR brew gist-logs <formula> link

bash
brew config:

HOMEBREW_VERSION: 7.0.4
ORIGIN: https://github.com/Homebrew/brew
HEAD: edb70f031e4170c780799633a1226ff73e1077f4
Last commit: 5 hours ago
Branch: stable
Core tap: N/A
Core cask tap: N/A
HOMEBREW_PREFIX: /usr/local
Homebrew Ruby: 4.0.7 => /usr/local/Homebrew/Library/Homebrew/vendor/portable-ruby/4.0.7/bin/ruby
CPU: dodeca-core 64-bit kabylake
Clang: 17.0.0 build 1700
Git: 2.50.1 => /Library/Developer/CommandLineTools/usr/bin/git
Curl: 8.7.1 => /usr/bin/curl
macOS: 15.8-x86_64
CLT: 26.3.0.0.1.1769666919
Xcode: N/A


Brew Doctor:
No data

Update of mole from v1.53 -> v1.54 failed after download as checksum failed verification.
`brew` reports:

==> Fetching downloads for: mole
✔︎ API Source mole.rb                                                                                            Verified      2.0KB/  2.0KB
✘ Formula mole (1.54.0)                                                                                         Verifying     7.6MB/-------
Error: Formula reports different checksum:  d1353803f4b32ca4296de6aaa21d1c17a1e9926f787f541765c357b79fbcdd6c
       SHA-256 checksum of downloaded file: d8c97b92947f2f9a60e9fdf27f43f1c86fee86e08bf5f97c1a353344e8521482

Verification

  • My brew doctor output says Your system is ready to brew. and am still able to reproduce my issue.
  • I ran brew update and am still able to reproduce my issue.
  • I have resolved all warnings from brew doctor and that did not fix my problem.
  • I searched for recent similar issues at https://github.com/Homebrew/homebrew-core/issues?q=is%3Aissue and found no duplicates.
  • My issue is not about a failure to build a formula from source.
  • I did not use AI/LLM to create this issue, or I disclosed the tool and model used; I will answer maintainer questions myself without AI/LLM.

What were you trying to do (and why)?

Update existing brew install.

What happened (include all command output)?

Failed to update mole formula due to checksum verification failure.

What did you expect to happen?

Formula to successfully update to latest version.

Step-by-step reproduction instructions (by running brew commands)

bash
% brew update
% brew upgrade
Enter [Y] to proceed
Homebrew fetches content.
Homebrew reports different checksum (see above)

Source: Homebrew/homebrew-core

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