问题
I can’t seem to figure this out. Homebrew can’t link git during the installation. Here’s what Terminal spits out:
==> Downloading http://git-core.googlecode.com/files/git-1.8.4.tar.gz
Already downloaded: /Library/Caches/Homebrew/git-1.8.4.tar.gz
==> make prefix=/usr/local/Cellar/git/1.8.4 sysconfdir=/usr/local/etc CC=cc CFLA
==> make CC=cc CFLAGS= LDFLAGS=
==> make clean
==> make CC=cc CFLAGS= LDFLAGS=
==> Downloading http://git-core.googlecode.com/files/git-manpages-1.8.4.tar.gz
Already downloaded: /Library/Caches/Homebrew/git-manpages-1.8.4.tar.gz
==> Downloading http://git-core.googlecode.com/files/git-htmldocs-1.8.4.tar.gz
Already downloaded: /Library/Caches/Homebrew/git-htmldocs-1.8.4.tar.gz
==> Caveats
The OS X keychain credential helper has been installed to:
/usr/local/bin/git-credential-osxkeychain
The 'contrib' directory has been installed to:
/usr/local/share/git-core/contrib
Bash completion has been installed to:
/usr/local/etc/bash_completion.d
zsh completion has been installed to:
/usr/local/share/zsh/site-functions
Warning: Could not link git. Unlinking...
Error: The `brew link` step did not complete successfully
The formula built, but is not symlinked into /usr/local
You can try again using `brew link git'
Possible conflicting files are:
/usr/local/share/git-core/templates/info/exclude -> /Applications/GitHub.app/Contents/Resources/git/share/git-core/templates/info/exclude
/usr/local/share/git-core/templates/hooks/update.sample -> /Applications/GitHub.app/Contents/Resources/git/share/git-core/templates/hooks/update.sample
/usr/local/share/git-core/templates/hooks/prepare-commit-msg.sample -> /Applications/GitHub.app/Contents/Resources/git/share/git-core/templates/hooks/prepare-commit-msg.sample
/usr/local/share/git-core/templates/hooks/pre-rebase.sample -> /Applications/GitHub.app/Contents/Resources/git/share/git-core/templates/hooks/pre-rebase.sample
/usr/local/share/git-core/templates/hooks/pre-push.sample -> /Applications/GitHub.app/Contents/Resources/git/share/git-core/templates/hooks/pre-push.sample
/usr/local/share/git-core/templates/hooks/pre-commit.sample -> /Applications/GitHub.app/Contents/Resources/git/share/git-core/templates/hooks/pre-commit.sample
/usr/local/share/git-core/templates/hooks/pre-applypatch.sample -> /Applications/GitHub.app/Contents/Resources/git/share/git-core/templates/hooks/pre-applypatch.sample
/usr/local/share/git-core/templates/hooks/post-update.sample -> /Applications/GitHub.app/Contents/Resources/git/share/git-core/templates/hooks/post-update.sample
/usr/local/share/git-core/templates/hooks/commit-msg.sample -> /Applications/GitHub.app/Contents/Resources/git/share/git-core/templates/hooks/commit-msg.sample
/usr/local/share/git-core/templates/hooks/applypatch-msg.sample -> /Applications/GitHub.app/Contents/Resources/git/share/git-core/templates/hooks/applypatch-msg.sample
/usr/local/share/git-core/templates/description -> /Applications/GitHub.app/Contents/Resources/git/share/git-core/templates/description
==> Summary
🍺 /usr/local/Cellar/git/1.8.4: 1339 files, 30M, built in 16 seconds
I’ve tried running:
brew link git
As well as uninstalling and reinstalling. My /etc/paths file is currently as follows:
/usr/local/bin
/usr/bin
/bin
/usr/sbin
/sbin
Any clue? Oh, I also have GitHub’s Mac app installed (if that matters?)
回答1:
It looks like there's a conflict with GitHub's app. I would remove it, you don't need it.
A few people I spoke with about it said it was kind of buggy and that you're better off just using the terminal (which I agree with).
edit: brew update brew upgrade followed by brew doctor might give more clues.
回答2:
The formula built, but is not symlinked into
/usr/local
Try overriding the links by:
brew link --overwrite git
Add --dry-run to see which files it affects.
If this still fails, try fixing your Homebrew permissions:
sudo chown -R $USER /usr/local/lib /usr/local/include /usr/local/bin /usr/local/Cellar
来源：https://stackoverflow.com/questions/18676241/homebrew-can-t-link-git-during-the-installation