How do I prevent a "'boneyard' not found" error when I 'brew update'?

Question

When I

brew update

I get

remote: Repository not found.
fatal: repository 'https://github.com/Homebrew/homebrew-boneyard/' not found
Error: Fetching /usr/local/Homebrew/Library/Taps/homebrew/homebrew-boneyard failed!

How do I fix this?

---

Details:

$brew update -v
Checking if we need to fetch /usr/local/Homebrew...
Checking if we need to fetch /usr/local/Homebrew/Library/Taps/homebrew/homebrew-boneyard...
Checking if we need to fetch /usr/local/Homebrew/Library/Taps/homebrew/homebrew-cask...
Checking if we need to fetch /usr/local/Homebrew/Library/Taps/homebrew/homebrew-core...
Checking if we need to fetch /usr/local/Homebrew/Library/Taps/homebrew/homebrew-dupes...
Checking if we need to fetch /usr/local/Homebrew/Library/Taps/homebrew/homebrew-python...
Checking if we need to fetch /usr/local/Homebrew/Library/Taps/homebrew/homebrew-versions...
Checking if we need to fetch /usr/local/Homebrew/Library/Taps/wix/homebrew-brew...
Fetching /usr/local/Homebrew/Library/Taps/homebrew/homebrew-boneyard...
remote: Repository not found.
fatal: repository 'https://github.com/Homebrew/homebrew-boneyard/' not found
Error: Fetching /usr/local/Homebrew/Library/Taps/homebrew/homebrew-boneyard failed!
Updating /usr/local/Homebrew...
Branch 'master' set up to track remote branch 'master' from 'origin'.
Switched to and reset branch 'master'
Your branch is up to date with 'origin/master'.
Switched to and reset branch 'stable'
Current branch stable is up to date.

Answer 1

You can "untap" to remove that deprecated source:

brew untap homebrew/boneyard

But I don't know whether there is any alternative source to homebrew/boneyard.

Answer 2

I had a similar issue, and found that the brew untap solution from Darius M. worked.

The error message about github is misleading and should be ignored (hopefully the developers will remove it). This is all about deprecated sources:

% brew update
fatal: could not read Username for 'https://github.com': terminal prompts disabled
fatal: could not read Username for 'https://github.com': terminal prompts disabled
Error: Fetching /usr/local/Homebrew/Library/Taps/homebrew/homebrew-dupes failed!
Fetching /usr/local/Homebrew/Library/Taps/homebrew/homebrew-x11 failed!
To restore the stashed changes to /usr/local/Homebrew run:
  'cd /usr/local/Homebrew && git stash pop'
...

Solution: for each failed source, run brew untap like so:

% brew untap homebrew/homebrew-dupes
Untapping homebrew/dupes...
Untapped (335 files, 437.1KB).
% brew untap homebrew/homebrew-x11
Untapping homebrew/x11...
Untapped (309 files, 288.4KB).

No errors any more:

% brew update                       
Already up-to-date.