On OSX Big Sur, I had a very frustrating experience with the error, because all of the solutions lean on using brew install
. But running brew install
was always returning an error like:
Error:
homebrew-core is a shallow clone.
To `brew update`, first run:
git -C /usr/local/Homebrew/Library/Taps/homebrew/homebrew-core fetch --unshallow
This command may take a few minutes to run due to the large size of the repository.
This restriction has been made on GitHub's request because updating shallow
clones is an extremely expensive operation due to the tree layout and traffic of
Homebrew/homebrew-core and Homebrew/homebrew-cask. We don't do this for you
automatically to avoid repeatedly performing an expensive unshallow operation in
CI systems (which should instead be fixed to not use shallow clones). Sorry for
the inconvenience!
But I couldn't run that command because git was failing with:
% git -C /usr/local/Homebrew/Library/Taps/homebrew/homebrew-core fetch --unshallow
dyld: Library not loaded: /usr/local/opt/openssl/lib/libssl.1.0.0.dylib
Referenced from: /usr/local/libexec/git-core/git-remote-https
Reason: image not found
In the end, the solution was to reinstall git.
brew reinstall git
And then update symlinks, if necessary:
brew link --overwrite git